Home / 5,417.05-8,125.85-1,520.95

Finding the Fourth Proportional to 5,417.05, 8,125.85 and 1,520.95

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Solution

The fourth proportional to 5,417.05, 8,125.85 and 1,520.95 is: 2,281.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,417.05 : 8,125.85 = 1,520.95 : x
  2. Step 2: Convert to fraction form
    5,417.05/8,125.85 = 1,520.95/x
  3. Step 3: Cross multiply
    5,417.05x = 8,125.85 × 1,520.95
  4. Step 4: Simplify right side
    5,417.05x = 12,359,003.95
  5. Step 5: Solve for x
    x = 12,359,003.95/5,417.05
  6. Step 6: Final answer
    x = 2,281.50

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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.