Home / 5,419.68-7,478.62-3,061.36

Finding the Fourth Proportional to 5,419.68, 7,478.62 and 3,061.36

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Solution

The fourth proportional to 5,419.68, 7,478.62 and 3,061.36 is: 4,224.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,419.68 : 7,478.62 = 3,061.36 : x
  2. Step 2: Convert to fraction form
    5,419.68/7,478.62 = 3,061.36/x
  3. Step 3: Cross multiply
    5,419.68x = 7,478.62 × 3,061.36
  4. Step 4: Simplify right side
    5,419.68x = 22,894,748.12
  5. Step 5: Solve for x
    x = 22,894,748.12/5,419.68
  6. Step 6: Final answer
    x = 4,224.37

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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.