Home / 1,765.11-2,634.60-1,557.55

Finding the Fourth Proportional to 1,765.11, 2,634.60 and 1,557.55

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Solution

The fourth proportional to 1,765.11, 2,634.60 and 1,557.55 is: 2,324.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,765.11 : 2,634.60 = 1,557.55 : x
  2. Step 2: Convert to fraction form
    1,765.11/2,634.60 = 1,557.55/x
  3. Step 3: Cross multiply
    1,765.11x = 2,634.60 × 1,557.55
  4. Step 4: Simplify right side
    1,765.11x = 4,103,521.23
  5. Step 5: Solve for x
    x = 4,103,521.23/1,765.11
  6. Step 6: Final answer
    x = 2,324.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.