Home / 4,909.29-6,772.57-2,918.71

Finding the Fourth Proportional to 4,909.29, 6,772.57 and 2,918.71

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Solution

The fourth proportional to 4,909.29, 6,772.57 and 2,918.71 is: 4,026.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,909.29 : 6,772.57 = 2,918.71 : x
  2. Step 2: Convert to fraction form
    4,909.29/6,772.57 = 2,918.71/x
  3. Step 3: Cross multiply
    4,909.29x = 6,772.57 × 2,918.71
  4. Step 4: Simplify right side
    4,909.29x = 19,767,167.78
  5. Step 5: Solve for x
    x = 19,767,167.78/4,909.29
  6. Step 6: Final answer
    x = 4,026.48

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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.