Home / 5,760-7,948.80-3,276.16

Finding the Fourth Proportional to 5,760, 7,948.80 and 3,276.16

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Solution

The fourth proportional to 5,760, 7,948.80 and 3,276.16 is: 4,521.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,760 : 7,948.80 = 3,276.16 : x
  2. Step 2: Convert to fraction form
    5,760/7,948.80 = 3,276.16/x
  3. Step 3: Cross multiply
    5,760x = 7,948.80 × 3,276.16
  4. Step 4: Simplify right side
    5,760x = 26,041,540.61
  5. Step 5: Solve for x
    x = 26,041,540.61/5,760
  6. Step 6: Final answer
    x = 4,521.10

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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.