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Finding the Fourth Proportional to 2,872.76, 4,299.89 and 1,484.20

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Solution

The fourth proportional to 2,872.76, 4,299.89 and 1,484.20 is: 2,221.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,872.76 : 4,299.89 = 1,484.20 : x
  2. Step 2: Convert to fraction form
    2,872.76/4,299.89 = 1,484.20/x
  3. Step 3: Cross multiply
    2,872.76x = 4,299.89 × 1,484.20
  4. Step 4: Simplify right side
    2,872.76x = 6,381,875.24
  5. Step 5: Solve for x
    x = 6,381,875.24/2,872.76
  6. Step 6: Final answer
    x = 2,221.51

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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.