Home / 3,428.47-4,728.45-2,101.24

Finding the Fourth Proportional to 3,428.47, 4,728.45 and 2,101.24

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Solution

The fourth proportional to 3,428.47, 4,728.45 and 2,101.24 is: 2,897.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.47 : 4,728.45 = 2,101.24 : x
  2. Step 2: Convert to fraction form
    3,428.47/4,728.45 = 2,101.24/x
  3. Step 3: Cross multiply
    3,428.47x = 4,728.45 × 2,101.24
  4. Step 4: Simplify right side
    3,428.47x = 9,935,608.28
  5. Step 5: Solve for x
    x = 9,935,608.28/3,428.47
  6. Step 6: Final answer
    x = 2,897.97

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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.