Home / 5,289.74-7,935.15-1,591.28

Finding the Fourth Proportional to 5,289.74, 7,935.15 and 1,591.28

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Solution

The fourth proportional to 5,289.74, 7,935.15 and 1,591.28 is: 2,387.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,289.74 : 7,935.15 = 1,591.28 : x
  2. Step 2: Convert to fraction form
    5,289.74/7,935.15 = 1,591.28/x
  3. Step 3: Cross multiply
    5,289.74x = 7,935.15 × 1,591.28
  4. Step 4: Simplify right side
    5,289.74x = 12,627,045.49
  5. Step 5: Solve for x
    x = 12,627,045.49/5,289.74
  6. Step 6: Final answer
    x = 2,387.08

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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.