Home / 2,659.12-3,980.48-2,432.32

Finding the Fourth Proportional to 2,659.12, 3,980.48 and 2,432.32

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Solution

The fourth proportional to 2,659.12, 3,980.48 and 2,432.32 is: 3,640.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,659.12 : 3,980.48 = 2,432.32 : x
  2. Step 2: Convert to fraction form
    2,659.12/3,980.48 = 2,432.32/x
  3. Step 3: Cross multiply
    2,659.12x = 3,980.48 × 2,432.32
  4. Step 4: Simplify right side
    2,659.12x = 9,681,779.00
  5. Step 5: Solve for x
    x = 9,681,779.00/2,659.12
  6. Step 6: Final answer
    x = 3,640.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.