Home / 2,478.92-3,421.26-1,484.78

Finding the Fourth Proportional to 2,478.92, 3,421.26 and 1,484.78

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Solution

The fourth proportional to 2,478.92, 3,421.26 and 1,484.78 is: 2,049.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,478.92 : 3,421.26 = 1,484.78 : x
  2. Step 2: Convert to fraction form
    2,478.92/3,421.26 = 1,484.78/x
  3. Step 3: Cross multiply
    2,478.92x = 3,421.26 × 1,484.78
  4. Step 4: Simplify right side
    2,478.92x = 5,079,818.42
  5. Step 5: Solve for x
    x = 5,079,818.42/2,478.92
  6. Step 6: Final answer
    x = 2,049.21

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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.