Home / 7,724.52-10,659.91-4,187.74

Finding the Fourth Proportional to 7,724.52, 10,659.91 and 4,187.74

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Solution

The fourth proportional to 7,724.52, 10,659.91 and 4,187.74 is: 5,779.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,724.52 : 10,659.91 = 4,187.74 : x
  2. Step 2: Convert to fraction form
    7,724.52/10,659.91 = 4,187.74/x
  3. Step 3: Cross multiply
    7,724.52x = 10,659.91 × 4,187.74
  4. Step 4: Simplify right side
    7,724.52x = 44,640,968.62
  5. Step 5: Solve for x
    x = 44,640,968.62/7,724.52
  6. Step 6: Final answer
    x = 5,779.12

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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.