Home / 1,877.47-2,818.02-1,389.04

Finding the Fourth Proportional to 1,877.47, 2,818.02 and 1,389.04

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Solution

The fourth proportional to 1,877.47, 2,818.02 and 1,389.04 is: 2,084.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,877.47 : 2,818.02 = 1,389.04 : x
  2. Step 2: Convert to fraction form
    1,877.47/2,818.02 = 1,389.04/x
  3. Step 3: Cross multiply
    1,877.47x = 2,818.02 × 1,389.04
  4. Step 4: Simplify right side
    1,877.47x = 3,914,342.50
  5. Step 5: Solve for x
    x = 3,914,342.50/1,877.47
  6. Step 6: Final answer
    x = 2,084.90

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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.