Home / 5,386.11-7,432.68-3,028.40

Finding the Fourth Proportional to 5,386.11, 7,432.68 and 3,028.40

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Solution

The fourth proportional to 5,386.11, 7,432.68 and 3,028.40 is: 4,179.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,386.11 : 7,432.68 = 3,028.40 : x
  2. Step 2: Convert to fraction form
    5,386.11/7,432.68 = 3,028.40/x
  3. Step 3: Cross multiply
    5,386.11x = 7,432.68 × 3,028.40
  4. Step 4: Simplify right side
    5,386.11x = 22,509,128.11
  5. Step 5: Solve for x
    x = 22,509,128.11/5,386.11
  6. Step 6: Final answer
    x = 4,179.11

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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.