Home / 5,184.61-7,776.88-3,105.20

Finding the Fourth Proportional to 5,184.61, 7,776.88 and 3,105.20

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Solution

The fourth proportional to 5,184.61, 7,776.88 and 3,105.20 is: 4,657.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,184.61 : 7,776.88 = 3,105.20 : x
  2. Step 2: Convert to fraction form
    5,184.61/7,776.88 = 3,105.20/x
  3. Step 3: Cross multiply
    5,184.61x = 7,776.88 × 3,105.20
  4. Step 4: Simplify right side
    5,184.61x = 24,148,779.46
  5. Step 5: Solve for x
    x = 24,148,779.46/5,184.61
  6. Step 6: Final answer
    x = 4,657.78

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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.