Home / 4,989.38-7,484.10-2,215.30

Finding the Fourth Proportional to 4,989.38, 7,484.10 and 2,215.30

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Solution

The fourth proportional to 4,989.38, 7,484.10 and 2,215.30 is: 3,322.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,989.38 : 7,484.10 = 2,215.30 : x
  2. Step 2: Convert to fraction form
    4,989.38/7,484.10 = 2,215.30/x
  3. Step 3: Cross multiply
    4,989.38x = 7,484.10 × 2,215.30
  4. Step 4: Simplify right side
    4,989.38x = 16,579,526.73
  5. Step 5: Solve for x
    x = 16,579,526.73/4,989.38
  6. Step 6: Final answer
    x = 3,322.96

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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.