Home / 5,280.78-7,282.24-3,392.06

Finding the Fourth Proportional to 5,280.78, 7,282.24 and 3,392.06

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Solution

The fourth proportional to 5,280.78, 7,282.24 and 3,392.06 is: 4,677.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280.78 : 7,282.24 = 3,392.06 : x
  2. Step 2: Convert to fraction form
    5,280.78/7,282.24 = 3,392.06/x
  3. Step 3: Cross multiply
    5,280.78x = 7,282.24 × 3,392.06
  4. Step 4: Simplify right side
    5,280.78x = 24,701,795.01
  5. Step 5: Solve for x
    x = 24,701,795.01/5,280.78
  6. Step 6: Final answer
    x = 4,677.68

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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.