Home / 1,260.67-1,739.74-701.20

Finding the Fourth Proportional to 1,260.67, 1,739.74 and 701.20

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Solution

The fourth proportional to 1,260.67, 1,739.74 and 701.20 is: 967.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260.67 : 1,739.74 = 701.20 : x
  2. Step 2: Convert to fraction form
    1,260.67/1,739.74 = 701.20/x
  3. Step 3: Cross multiply
    1,260.67x = 1,739.74 × 701.20
  4. Step 4: Simplify right side
    1,260.67x = 1,219,905.69
  5. Step 5: Solve for x
    x = 1,219,905.69/1,260.67
  6. Step 6: Final answer
    x = 967.66

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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.