Home / 5,102.76-7,040.05-2,864.32

Finding the Fourth Proportional to 5,102.76, 7,040.05 and 2,864.32

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Solution

The fourth proportional to 5,102.76, 7,040.05 and 2,864.32 is: 3,951.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,102.76 : 7,040.05 = 2,864.32 : x
  2. Step 2: Convert to fraction form
    5,102.76/7,040.05 = 2,864.32/x
  3. Step 3: Cross multiply
    5,102.76x = 7,040.05 × 2,864.32
  4. Step 4: Simplify right side
    5,102.76x = 20,164,956.02
  5. Step 5: Solve for x
    x = 20,164,956.02/5,102.76
  6. Step 6: Final answer
    x = 3,951.77

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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.