Home / 2,420.46-3,340.17-1,425.80

Finding the Fourth Proportional to 2,420.46, 3,340.17 and 1,425.80

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Solution

The fourth proportional to 2,420.46, 3,340.17 and 1,425.80 is: 1,967.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,420.46 : 3,340.17 = 1,425.80 : x
  2. Step 2: Convert to fraction form
    2,420.46/3,340.17 = 1,425.80/x
  3. Step 3: Cross multiply
    2,420.46x = 3,340.17 × 1,425.80
  4. Step 4: Simplify right side
    2,420.46x = 4,762,422.74
  5. Step 5: Solve for x
    x = 4,762,422.74/2,420.46
  6. Step 6: Final answer
    x = 1,967.57

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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.