Home / 5,019.68-6,927.08-2,781.55

Finding the Fourth Proportional to 5,019.68, 6,927.08 and 2,781.55

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Solution

The fourth proportional to 5,019.68, 6,927.08 and 2,781.55 is: 3,838.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,019.68 : 6,927.08 = 2,781.55 : x
  2. Step 2: Convert to fraction form
    5,019.68/6,927.08 = 2,781.55/x
  3. Step 3: Cross multiply
    5,019.68x = 6,927.08 × 2,781.55
  4. Step 4: Simplify right side
    5,019.68x = 19,268,029.77
  5. Step 5: Solve for x
    x = 19,268,029.77/5,019.68
  6. Step 6: Final answer
    x = 3,838.50

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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.