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Finding the Fourth Proportional to 5,391, 7,439.58 and 3,735

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Solution

The fourth proportional to 5,391, 7,439.58 and 3,735 is: 5,154.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,391 : 7,439.58 = 3,735 : x
  2. Step 2: Convert to fraction form
    5,391/7,439.58 = 3,735/x
  3. Step 3: Cross multiply
    5,391x = 7,439.58 × 3,735
  4. Step 4: Simplify right side
    5,391x = 27,786,831.30
  5. Step 5: Solve for x
    x = 27,786,831.30/5,391
  6. Step 6: Final answer
    x = 5,154.30

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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.