Home / 1,854.96-2,560.26-1,225.60

Finding the Fourth Proportional to 1,854.96, 2,560.26 and 1,225.60

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Solution

The fourth proportional to 1,854.96, 2,560.26 and 1,225.60 is: 1,691.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,854.96 : 2,560.26 = 1,225.60 : x
  2. Step 2: Convert to fraction form
    1,854.96/2,560.26 = 1,225.60/x
  3. Step 3: Cross multiply
    1,854.96x = 2,560.26 × 1,225.60
  4. Step 4: Simplify right side
    1,854.96x = 3,137,854.66
  5. Step 5: Solve for x
    x = 3,137,854.66/1,854.96
  6. Step 6: Final answer
    x = 1,691.60

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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.