Home / 4,019.76-5,545.80-2,447.28

Finding the Fourth Proportional to 4,019.76, 5,545.80 and 2,447.28

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Solution

The fourth proportional to 4,019.76, 5,545.80 and 2,447.28 is: 3,376.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,019.76 : 5,545.80 = 2,447.28 : x
  2. Step 2: Convert to fraction form
    4,019.76/5,545.80 = 2,447.28/x
  3. Step 3: Cross multiply
    4,019.76x = 5,545.80 × 2,447.28
  4. Step 4: Simplify right side
    4,019.76x = 13,572,125.42
  5. Step 5: Solve for x
    x = 13,572,125.42/4,019.76
  6. Step 6: Final answer
    x = 3,376.35

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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.