Home / 5,019.30-6,926.68-2,781.20

Finding the Fourth Proportional to 5,019.30, 6,926.68 and 2,781.20

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Solution

The fourth proportional to 5,019.30, 6,926.68 and 2,781.20 is: 3,838.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,019.30 : 6,926.68 = 2,781.20 : x
  2. Step 2: Convert to fraction form
    5,019.30/6,926.68 = 2,781.20/x
  3. Step 3: Cross multiply
    5,019.30x = 6,926.68 × 2,781.20
  4. Step 4: Simplify right side
    5,019.30x = 19,264,503.21
  5. Step 5: Solve for x
    x = 19,264,503.21/5,019.30
  6. Step 6: Final answer
    x = 3,838.09

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1.5x scale

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.