Home / 2,422.86-3,343.80-1,479.21

Finding the Fourth Proportional to 2,422.86, 3,343.80 and 1,479.21

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Solution

The fourth proportional to 2,422.86, 3,343.80 and 1,479.21 is: 2,041.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,422.86 : 3,343.80 = 1,479.21 : x
  2. Step 2: Convert to fraction form
    2,422.86/3,343.80 = 1,479.21/x
  3. Step 3: Cross multiply
    2,422.86x = 3,343.80 × 1,479.21
  4. Step 4: Simplify right side
    2,422.86x = 4,946,182.40
  5. Step 5: Solve for x
    x = 4,946,182.40/2,422.86
  6. Step 6: Final answer
    x = 2,041.46

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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.