Home / 1,877.57-2,589.48-1,406.58

Finding the Fourth Proportional to 1,877.57, 2,589.48 and 1,406.58

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Solution

The fourth proportional to 1,877.57, 2,589.48 and 1,406.58 is: 1,939.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,877.57 : 2,589.48 = 1,406.58 : x
  2. Step 2: Convert to fraction form
    1,877.57/2,589.48 = 1,406.58/x
  3. Step 3: Cross multiply
    1,877.57x = 2,589.48 × 1,406.58
  4. Step 4: Simplify right side
    1,877.57x = 3,642,290.80
  5. Step 5: Solve for x
    x = 3,642,290.80/1,877.57
  6. Step 6: Final answer
    x = 1,939.90

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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.