Home / 5,515.04-7,610.88-3,031.04

Finding the Fourth Proportional to 5,515.04, 7,610.88 and 3,031.04

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Solution

The fourth proportional to 5,515.04, 7,610.88 and 3,031.04 is: 4,182.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,515.04 : 7,610.88 = 3,031.04 : x
  2. Step 2: Convert to fraction form
    5,515.04/7,610.88 = 3,031.04/x
  3. Step 3: Cross multiply
    5,515.04x = 7,610.88 × 3,031.04
  4. Step 4: Simplify right side
    5,515.04x = 23,068,881.72
  5. Step 5: Solve for x
    x = 23,068,881.72/5,515.04
  6. Step 6: Final answer
    x = 4,182.90

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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.