Home / 7,158.40-10,732.28-3,645.58

Finding the Fourth Proportional to 7,158.40, 10,732.28 and 3,645.58

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Solution

The fourth proportional to 7,158.40, 10,732.28 and 3,645.58 is: 5,465.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,158.40 : 10,732.28 = 3,645.58 : x
  2. Step 2: Convert to fraction form
    7,158.40/10,732.28 = 3,645.58/x
  3. Step 3: Cross multiply
    7,158.40x = 10,732.28 × 3,645.58
  4. Step 4: Simplify right side
    7,158.40x = 39,125,385.32
  5. Step 5: Solve for x
    x = 39,125,385.32/7,158.40
  6. Step 6: Final answer
    x = 5,465.66

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1.5x scale

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.