Home / 5,712.30-7,904.52-4,871.66

Finding the Fourth Proportional to 5,712.30, 7,904.52 and 4,871.66

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Solution

The fourth proportional to 5,712.30, 7,904.52 and 4,871.66 is: 6,741.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,712.30 : 7,904.52 = 4,871.66 : x
  2. Step 2: Convert to fraction form
    5,712.30/7,904.52 = 4,871.66/x
  3. Step 3: Cross multiply
    5,712.30x = 7,904.52 × 4,871.66
  4. Step 4: Simplify right side
    5,712.30x = 38,508,133.90
  5. Step 5: Solve for x
    x = 38,508,133.90/5,712.30
  6. Step 6: Final answer
    x = 6,741.27

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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.