Home / 3,545.32-5,319.35-1,353.55

Finding the Fourth Proportional to 3,545.32, 5,319.35 and 1,353.55

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Solution

The fourth proportional to 3,545.32, 5,319.35 and 1,353.55 is: 2,030.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,545.32 : 5,319.35 = 1,353.55 : x
  2. Step 2: Convert to fraction form
    3,545.32/5,319.35 = 1,353.55/x
  3. Step 3: Cross multiply
    3,545.32x = 5,319.35 × 1,353.55
  4. Step 4: Simplify right side
    3,545.32x = 7,200,006.19
  5. Step 5: Solve for x
    x = 7,200,006.19/3,545.32
  6. Step 6: Final answer
    x = 2,030.85

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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.