Home / 1,872.16-2,808.96-1,614.72

Finding the Fourth Proportional to 1,872.16, 2,808.96 and 1,614.72

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Solution

The fourth proportional to 1,872.16, 2,808.96 and 1,614.72 is: 2,422.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,872.16 : 2,808.96 = 1,614.72 : x
  2. Step 2: Convert to fraction form
    1,872.16/2,808.96 = 1,614.72/x
  3. Step 3: Cross multiply
    1,872.16x = 2,808.96 × 1,614.72
  4. Step 4: Simplify right side
    1,872.16x = 4,535,683.89
  5. Step 5: Solve for x
    x = 4,535,683.89/1,872.16
  6. Step 6: Final answer
    x = 2,422.70

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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.