Home / 5,475.85-7,555.17-3,175.40

Finding the Fourth Proportional to 5,475.85, 7,555.17 and 3,175.40

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Solution

The fourth proportional to 5,475.85, 7,555.17 and 3,175.40 is: 4,381.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,475.85 : 7,555.17 = 3,175.40 : x
  2. Step 2: Convert to fraction form
    5,475.85/7,555.17 = 3,175.40/x
  3. Step 3: Cross multiply
    5,475.85x = 7,555.17 × 3,175.40
  4. Step 4: Simplify right side
    5,475.85x = 23,990,717.61
  5. Step 5: Solve for x
    x = 23,990,717.61/5,475.85
  6. Step 6: Final answer
    x = 4,381.18

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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.