Home / 7,877.64-11,818.51-2,947.66

Finding the Fourth Proportional to 7,877.64, 11,818.51 and 2,947.66

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Solution

The fourth proportional to 7,877.64, 11,818.51 and 2,947.66 is: 4,422.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,877.64 : 11,818.51 = 2,947.66 : x
  2. Step 2: Convert to fraction form
    7,877.64/11,818.51 = 2,947.66/x
  3. Step 3: Cross multiply
    7,877.64x = 11,818.51 × 2,947.66
  4. Step 4: Simplify right side
    7,877.64x = 34,836,949.19
  5. Step 5: Solve for x
    x = 34,836,949.19/7,877.64
  6. Step 6: Final answer
    x = 4,422.26

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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.