Home / 1,812.02-2,717.35-579.10

Finding the Fourth Proportional to 1,812.02, 2,717.35 and 579.10

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Solution

The fourth proportional to 1,812.02, 2,717.35 and 579.10 is: 868.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,812.02 : 2,717.35 = 579.10 : x
  2. Step 2: Convert to fraction form
    1,812.02/2,717.35 = 579.10/x
  3. Step 3: Cross multiply
    1,812.02x = 2,717.35 × 579.10
  4. Step 4: Simplify right side
    1,812.02x = 1,573,614.24
  5. Step 5: Solve for x
    x = 1,573,614.24/1,812.02
  6. Step 6: Final answer
    x = 868.43

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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.