Home / 1,854.38-2,558.30-1,225.24

Finding the Fourth Proportional to 1,854.38, 2,558.30 and 1,225.24

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Solution

The fourth proportional to 1,854.38, 2,558.30 and 1,225.24 is: 1,690.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,854.38 : 2,558.30 = 1,225.24 : x
  2. Step 2: Convert to fraction form
    1,854.38/2,558.30 = 1,225.24/x
  3. Step 3: Cross multiply
    1,854.38x = 2,558.30 × 1,225.24
  4. Step 4: Simplify right side
    1,854.38x = 3,134,531.49
  5. Step 5: Solve for x
    x = 3,134,531.49/1,854.38
  6. Step 6: Final answer
    x = 1,690.34

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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.