Home / 3,125.56-4,319.40-2,565.12

Finding the Fourth Proportional to 3,125.56, 4,319.40 and 2,565.12

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Solution

The fourth proportional to 3,125.56, 4,319.40 and 2,565.12 is: 3,544.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,125.56 : 4,319.40 = 2,565.12 : x
  2. Step 2: Convert to fraction form
    3,125.56/4,319.40 = 2,565.12/x
  3. Step 3: Cross multiply
    3,125.56x = 4,319.40 × 2,565.12
  4. Step 4: Simplify right side
    3,125.56x = 11,079,779.33
  5. Step 5: Solve for x
    x = 11,079,779.33/3,125.56
  6. Step 6: Final answer
    x = 3,544.89

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1.5x scale

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.