Home / 5,115.84-7,673.70-1,418.04

Finding the Fourth Proportional to 5,115.84, 7,673.70 and 1,418.04

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Solution

The fourth proportional to 5,115.84, 7,673.70 and 1,418.04 is: 2,127.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,115.84 : 7,673.70 = 1,418.04 : x
  2. Step 2: Convert to fraction form
    5,115.84/7,673.70 = 1,418.04/x
  3. Step 3: Cross multiply
    5,115.84x = 7,673.70 × 1,418.04
  4. Step 4: Simplify right side
    5,115.84x = 10,881,613.55
  5. Step 5: Solve for x
    x = 10,881,613.55/5,115.84
  6. Step 6: Final answer
    x = 2,127.04

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1.5x scale

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.