Home / 5,386.38-7,432.61-3,028.47

Finding the Fourth Proportional to 5,386.38, 7,432.61 and 3,028.47

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Solution

The fourth proportional to 5,386.38, 7,432.61 and 3,028.47 is: 4,178.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,386.38 : 7,432.61 = 3,028.47 : x
  2. Step 2: Convert to fraction form
    5,386.38/7,432.61 = 3,028.47/x
  3. Step 3: Cross multiply
    5,386.38x = 7,432.61 × 3,028.47
  4. Step 4: Simplify right side
    5,386.38x = 22,509,421.26
  5. Step 5: Solve for x
    x = 22,509,421.26/5,386.38
  6. Step 6: Final answer
    x = 4,178.95

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1.5x scale

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.