Home / 1,140.28-1,573.27-698.02

Finding the Fourth Proportional to 1,140.28, 1,573.27 and 698.02

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Solution

The fourth proportional to 1,140.28, 1,573.27 and 698.02 is: 963.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,140.28 : 1,573.27 = 698.02 : x
  2. Step 2: Convert to fraction form
    1,140.28/1,573.27 = 698.02/x
  3. Step 3: Cross multiply
    1,140.28x = 1,573.27 × 698.02
  4. Step 4: Simplify right side
    1,140.28x = 1,098,172.17
  5. Step 5: Solve for x
    x = 1,098,172.17/1,140.28
  6. Step 6: Final answer
    x = 963.07

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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.