Home / 3,575.30-4,931.49-2,912.18

Finding the Fourth Proportional to 3,575.30, 4,931.49 and 2,912.18

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Solution

The fourth proportional to 3,575.30, 4,931.49 and 2,912.18 is: 4,016.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,575.30 : 4,931.49 = 2,912.18 : x
  2. Step 2: Convert to fraction form
    3,575.30/4,931.49 = 2,912.18/x
  3. Step 3: Cross multiply
    3,575.30x = 4,931.49 × 2,912.18
  4. Step 4: Simplify right side
    3,575.30x = 14,361,386.55
  5. Step 5: Solve for x
    x = 14,361,386.55/3,575.30
  6. Step 6: Final answer
    x = 4,016.83

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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.