Home / 1,877.85-2,591.36-1,038.56

Finding the Fourth Proportional to 1,877.85, 2,591.36 and 1,038.56

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Solution

The fourth proportional to 1,877.85, 2,591.36 and 1,038.56 is: 1,433.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,877.85 : 2,591.36 = 1,038.56 : x
  2. Step 2: Convert to fraction form
    1,877.85/2,591.36 = 1,038.56/x
  3. Step 3: Cross multiply
    1,877.85x = 2,591.36 × 1,038.56
  4. Step 4: Simplify right side
    1,877.85x = 2,691,268.59
  5. Step 5: Solve for x
    x = 2,691,268.59/1,877.85
  6. Step 6: Final answer
    x = 1,433.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.