Home / 5,019.56-6,926.88-2,781.44

Finding the Fourth Proportional to 5,019.56, 6,926.88 and 2,781.44

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Solution

The fourth proportional to 5,019.56, 6,926.88 and 2,781.44 is: 3,838.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,019.56 : 6,926.88 = 2,781.44 : x
  2. Step 2: Convert to fraction form
    5,019.56/6,926.88 = 2,781.44/x
  3. Step 3: Cross multiply
    5,019.56x = 6,926.88 × 2,781.44
  4. Step 4: Simplify right side
    5,019.56x = 19,266,701.11
  5. Step 5: Solve for x
    x = 19,266,701.11/5,019.56
  6. Step 6: Final answer
    x = 3,838.32

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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.