Home / 2,280.12-3,420.18-548.76

Finding the Fourth Proportional to 2,280.12, 3,420.18 and 548.76

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Solution

The fourth proportional to 2,280.12, 3,420.18 and 548.76 is: 823.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,280.12 : 3,420.18 = 548.76 : x
  2. Step 2: Convert to fraction form
    2,280.12/3,420.18 = 548.76/x
  3. Step 3: Cross multiply
    2,280.12x = 3,420.18 × 548.76
  4. Step 4: Simplify right side
    2,280.12x = 1,876,857.98
  5. Step 5: Solve for x
    x = 1,876,857.98/2,280.12
  6. Step 6: Final answer
    x = 823.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.