Home / 2,921.20-4,383.10-1,534.20

Finding the Fourth Proportional to 2,921.20, 4,383.10 and 1,534.20

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Solution

The fourth proportional to 2,921.20, 4,383.10 and 1,534.20 is: 2,301.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.20 : 4,383.10 = 1,534.20 : x
  2. Step 2: Convert to fraction form
    2,921.20/4,383.10 = 1,534.20/x
  3. Step 3: Cross multiply
    2,921.20x = 4,383.10 × 1,534.20
  4. Step 4: Simplify right side
    2,921.20x = 6,724,552.02
  5. Step 5: Solve for x
    x = 6,724,552.02/2,921.20
  6. Step 6: Final answer
    x = 2,301.98

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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.