Home / 2,420.18-3,621.63-2,257.46

Finding the Fourth Proportional to 2,420.18, 3,621.63 and 2,257.46

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Solution

The fourth proportional to 2,420.18, 3,621.63 and 2,257.46 is: 3,378.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,420.18 : 3,621.63 = 2,257.46 : x
  2. Step 2: Convert to fraction form
    2,420.18/3,621.63 = 2,257.46/x
  3. Step 3: Cross multiply
    2,420.18x = 3,621.63 × 2,257.46
  4. Step 4: Simplify right side
    2,420.18x = 8,175,684.86
  5. Step 5: Solve for x
    x = 8,175,684.86/2,420.18
  6. Step 6: Final answer
    x = 3,378.13

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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.