Home / 2,931.91-4,397.84-2,005.16

Finding the Fourth Proportional to 2,931.91, 4,397.84 and 2,005.16

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Solution

The fourth proportional to 2,931.91, 4,397.84 and 2,005.16 is: 3,007.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,931.91 : 4,397.84 = 2,005.16 : x
  2. Step 2: Convert to fraction form
    2,931.91/4,397.84 = 2,005.16/x
  3. Step 3: Cross multiply
    2,931.91x = 4,397.84 × 2,005.16
  4. Step 4: Simplify right side
    2,931.91x = 8,818,373.82
  5. Step 5: Solve for x
    x = 8,818,373.82/2,931.91
  6. Step 6: Final answer
    x = 3,007.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.