Home / 1,614.13-2,227.40-915.50

Finding the Fourth Proportional to 1,614.13, 2,227.40 and 915.50

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Solution

The fourth proportional to 1,614.13, 2,227.40 and 915.50 is: 1,263.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,614.13 : 2,227.40 = 915.50 : x
  2. Step 2: Convert to fraction form
    1,614.13/2,227.40 = 915.50/x
  3. Step 3: Cross multiply
    1,614.13x = 2,227.40 × 915.50
  4. Step 4: Simplify right side
    1,614.13x = 2,039,189.12
  5. Step 5: Solve for x
    x = 2,039,189.12/1,614.13
  6. Step 6: Final answer
    x = 1,263.34

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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.