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Finding the Fourth Proportional to 1,539, 2,308.23 and 954.05

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Solution

The fourth proportional to 1,539, 2,308.23 and 954.05 is: 1,430.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,539 : 2,308.23 = 954.05 : x
  2. Step 2: Convert to fraction form
    1,539/2,308.23 = 954.05/x
  3. Step 3: Cross multiply
    1,539x = 2,308.23 × 954.05
  4. Step 4: Simplify right side
    1,539x = 2,202,155.29
  5. Step 5: Solve for x
    x = 2,202,155.29/1,539
  6. Step 6: Final answer
    x = 1,430.90

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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.