Home / 2,948.13-4,422.66-999.81

Finding the Fourth Proportional to 2,948.13, 4,422.66 and 999.81

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Solution

The fourth proportional to 2,948.13, 4,422.66 and 999.81 is: 1,499.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,948.13 : 4,422.66 = 999.81 : x
  2. Step 2: Convert to fraction form
    2,948.13/4,422.66 = 999.81/x
  3. Step 3: Cross multiply
    2,948.13x = 4,422.66 × 999.81
  4. Step 4: Simplify right side
    2,948.13x = 4,421,819.69
  5. Step 5: Solve for x
    x = 4,421,819.69/2,948.13
  6. Step 6: Final answer
    x = 1,499.87

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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.