Home / 4,931-7,377.86-2,851.96

Finding the Fourth Proportional to 4,931, 7,377.86 and 2,851.96

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Solution

The fourth proportional to 4,931, 7,377.86 and 2,851.96 is: 4,267.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,931 : 7,377.86 = 2,851.96 : x
  2. Step 2: Convert to fraction form
    4,931/7,377.86 = 2,851.96/x
  3. Step 3: Cross multiply
    4,931x = 7,377.86 × 2,851.96
  4. Step 4: Simplify right side
    4,931x = 21,041,361.61
  5. Step 5: Solve for x
    x = 21,041,361.61/4,931
  6. Step 6: Final answer
    x = 4,267.16

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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.