Home / 5,117.20-7,675.80-4,752.70

Finding the Fourth Proportional to 5,117.20, 7,675.80 and 4,752.70

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Solution

The fourth proportional to 5,117.20, 7,675.80 and 4,752.70 is: 7,129.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,117.20 : 7,675.80 = 4,752.70 : x
  2. Step 2: Convert to fraction form
    5,117.20/7,675.80 = 4,752.70/x
  3. Step 3: Cross multiply
    5,117.20x = 7,675.80 × 4,752.70
  4. Step 4: Simplify right side
    5,117.20x = 36,480,774.66
  5. Step 5: Solve for x
    x = 36,480,774.66/5,117.20
  6. Step 6: Final answer
    x = 7,129.05

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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.