Home / 4,687.12-7,034.76-1,915.30

Finding the Fourth Proportional to 4,687.12, 7,034.76 and 1,915.30

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Solution

The fourth proportional to 4,687.12, 7,034.76 and 1,915.30 is: 2,874.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,687.12 : 7,034.76 = 1,915.30 : x
  2. Step 2: Convert to fraction form
    4,687.12/7,034.76 = 1,915.30/x
  3. Step 3: Cross multiply
    4,687.12x = 7,034.76 × 1,915.30
  4. Step 4: Simplify right side
    4,687.12x = 13,473,675.83
  5. Step 5: Solve for x
    x = 13,473,675.83/4,687.12
  6. Step 6: Final answer
    x = 2,874.62

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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.