Home / 4,478.10-6,721.25-2,400.45

Finding the Fourth Proportional to 4,478.10, 6,721.25 and 2,400.45

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Solution

The fourth proportional to 4,478.10, 6,721.25 and 2,400.45 is: 3,602.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,478.10 : 6,721.25 = 2,400.45 : x
  2. Step 2: Convert to fraction form
    4,478.10/6,721.25 = 2,400.45/x
  3. Step 3: Cross multiply
    4,478.10x = 6,721.25 × 2,400.45
  4. Step 4: Simplify right side
    4,478.10x = 16,134,024.56
  5. Step 5: Solve for x
    x = 16,134,024.56/4,478.10
  6. Step 6: Final answer
    x = 3,602.87

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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.