Home / 1,538.18-2,308.39-614.01

Finding the Fourth Proportional to 1,538.18, 2,308.39 and 614.01

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Solution

The fourth proportional to 1,538.18, 2,308.39 and 614.01 is: 921.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,538.18 : 2,308.39 = 614.01 : x
  2. Step 2: Convert to fraction form
    1,538.18/2,308.39 = 614.01/x
  3. Step 3: Cross multiply
    1,538.18x = 2,308.39 × 614.01
  4. Step 4: Simplify right side
    1,538.18x = 1,417,365.21
  5. Step 5: Solve for x
    x = 1,417,365.21/1,538.18
  6. Step 6: Final answer
    x = 921.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.