Home / 2,871.60-4,307.40-2,507.10

Finding the Fourth Proportional to 2,871.60, 4,307.40 and 2,507.10

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Solution

The fourth proportional to 2,871.60, 4,307.40 and 2,507.10 is: 3,760.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,871.60 : 4,307.40 = 2,507.10 : x
  2. Step 2: Convert to fraction form
    2,871.60/4,307.40 = 2,507.10/x
  3. Step 3: Cross multiply
    2,871.60x = 4,307.40 × 2,507.10
  4. Step 4: Simplify right side
    2,871.60x = 10,799,082.54
  5. Step 5: Solve for x
    x = 10,799,082.54/2,871.60
  6. Step 6: Final answer
    x = 3,760.65

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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.