Home / 1,450.03-2,000.37-860.35

Finding the Fourth Proportional to 1,450.03, 2,000.37 and 860.35

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Solution

The fourth proportional to 1,450.03, 2,000.37 and 860.35 is: 1,186.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,450.03 : 2,000.37 = 860.35 : x
  2. Step 2: Convert to fraction form
    1,450.03/2,000.37 = 860.35/x
  3. Step 3: Cross multiply
    1,450.03x = 2,000.37 × 860.35
  4. Step 4: Simplify right side
    1,450.03x = 1,721,016.55
  5. Step 5: Solve for x
    x = 1,721,016.55/1,450.03
  6. Step 6: Final answer
    x = 1,186.89

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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.