Home / 5,031.90-7,545.80-1,520.82

Finding the Fourth Proportional to 5,031.90, 7,545.80 and 1,520.82

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Solution

The fourth proportional to 5,031.90, 7,545.80 and 1,520.82 is: 2,280.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,031.90 : 7,545.80 = 1,520.82 : x
  2. Step 2: Convert to fraction form
    5,031.90/7,545.80 = 1,520.82/x
  3. Step 3: Cross multiply
    5,031.90x = 7,545.80 × 1,520.82
  4. Step 4: Simplify right side
    5,031.90x = 11,475,795.95
  5. Step 5: Solve for x
    x = 11,475,795.95/5,031.90
  6. Step 6: Final answer
    x = 2,280.61

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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.