Home / 5,117.49-7,638.87-4,391.73

Finding the Fourth Proportional to 5,117.49, 7,638.87 and 4,391.73

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Solution

The fourth proportional to 5,117.49, 7,638.87 and 4,391.73 is: 6,555.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,117.49 : 7,638.87 = 4,391.73 : x
  2. Step 2: Convert to fraction form
    5,117.49/7,638.87 = 4,391.73/x
  3. Step 3: Cross multiply
    5,117.49x = 7,638.87 × 4,391.73
  4. Step 4: Simplify right side
    5,117.49x = 33,547,854.55
  5. Step 5: Solve for x
    x = 33,547,854.55/5,117.49
  6. Step 6: Final answer
    x = 6,555.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.