Home / 1,948.24-2,922.36-487.38

Finding the Fourth Proportional to 1,948.24, 2,922.36 and 487.38

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Solution

The fourth proportional to 1,948.24, 2,922.36 and 487.38 is: 731.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,948.24 : 2,922.36 = 487.38 : x
  2. Step 2: Convert to fraction form
    1,948.24/2,922.36 = 487.38/x
  3. Step 3: Cross multiply
    1,948.24x = 2,922.36 × 487.38
  4. Step 4: Simplify right side
    1,948.24x = 1,424,311.69
  5. Step 5: Solve for x
    x = 1,424,311.69/1,948.24
  6. Step 6: Final answer
    x = 731.08

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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.