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Finding the Fourth Proportional to 1,450.77, 2,001.35 and 860.89

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Solution

The fourth proportional to 1,450.77, 2,001.35 and 860.89 is: 1,187.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,450.77 : 2,001.35 = 860.89 : x
  2. Step 2: Convert to fraction form
    1,450.77/2,001.35 = 860.89/x
  3. Step 3: Cross multiply
    1,450.77x = 2,001.35 × 860.89
  4. Step 4: Simplify right side
    1,450.77x = 1,722,937.21
  5. Step 5: Solve for x
    x = 1,722,937.21/1,450.77
  6. Step 6: Final answer
    x = 1,187.60

Related Problems

Find fourth proportional to 725.38, 1,000.68 and 430.44
Half scale
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Double scale
Find fourth proportional to 1,451.77, 2,002.73 and 861.89
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.