Home / 5,587.65-7,712.34-3,231.15

Finding the Fourth Proportional to 5,587.65, 7,712.34 and 3,231.15

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Solution

The fourth proportional to 5,587.65, 7,712.34 and 3,231.15 is: 4,459.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,587.65 : 7,712.34 = 3,231.15 : x
  2. Step 2: Convert to fraction form
    5,587.65/7,712.34 = 3,231.15/x
  3. Step 3: Cross multiply
    5,587.65x = 7,712.34 × 3,231.15
  4. Step 4: Simplify right side
    5,587.65x = 24,919,727.39
  5. Step 5: Solve for x
    x = 24,919,727.39/5,587.65
  6. Step 6: Final answer
    x = 4,459.79

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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.