Home / 7,724.62-10,659.90-4,187.77

Finding the Fourth Proportional to 7,724.62, 10,659.90 and 4,187.77

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Solution

The fourth proportional to 7,724.62, 10,659.90 and 4,187.77 is: 5,779.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,724.62 : 10,659.90 = 4,187.77 : x
  2. Step 2: Convert to fraction form
    7,724.62/10,659.90 = 4,187.77/x
  3. Step 3: Cross multiply
    7,724.62x = 10,659.90 × 4,187.77
  4. Step 4: Simplify right side
    7,724.62x = 44,641,209.42
  5. Step 5: Solve for x
    x = 44,641,209.42/7,724.62
  6. Step 6: Final answer
    x = 5,779.08

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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.