Home / 7,217.99-9,959.13-4,385.28

Finding the Fourth Proportional to 7,217.99, 9,959.13 and 4,385.28

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Solution

The fourth proportional to 7,217.99, 9,959.13 and 4,385.28 is: 6,050.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,217.99 : 9,959.13 = 4,385.28 : x
  2. Step 2: Convert to fraction form
    7,217.99/9,959.13 = 4,385.28/x
  3. Step 3: Cross multiply
    7,217.99x = 9,959.13 × 4,385.28
  4. Step 4: Simplify right side
    7,217.99x = 43,673,573.61
  5. Step 5: Solve for x
    x = 43,673,573.61/7,217.99
  6. Step 6: Final answer
    x = 6,050.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.