Home / 2,428.08-3,658.32-2,197.20

Finding the Fourth Proportional to 2,428.08, 3,658.32 and 2,197.20

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Solution

The fourth proportional to 2,428.08, 3,658.32 and 2,197.20 is: 3,310.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,428.08 : 3,658.32 = 2,197.20 : x
  2. Step 2: Convert to fraction form
    2,428.08/3,658.32 = 2,197.20/x
  3. Step 3: Cross multiply
    2,428.08x = 3,658.32 × 2,197.20
  4. Step 4: Simplify right side
    2,428.08x = 8,038,060.70
  5. Step 5: Solve for x
    x = 8,038,060.70/2,428.08
  6. Step 6: Final answer
    x = 3,310.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.