Home / 2,565.28-3,537.72-1,903.78

Finding the Fourth Proportional to 2,565.28, 3,537.72 and 1,903.78

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Solution

The fourth proportional to 2,565.28, 3,537.72 and 1,903.78 is: 2,625.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,565.28 : 3,537.72 = 1,903.78 : x
  2. Step 2: Convert to fraction form
    2,565.28/3,537.72 = 1,903.78/x
  3. Step 3: Cross multiply
    2,565.28x = 3,537.72 × 1,903.78
  4. Step 4: Simplify right side
    2,565.28x = 6,735,040.58
  5. Step 5: Solve for x
    x = 6,735,040.58/2,565.28
  6. Step 6: Final answer
    x = 2,625.46

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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.