Home / 2,417.74-3,336.20-1,422.80

Finding the Fourth Proportional to 2,417.74, 3,336.20 and 1,422.80

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Solution

The fourth proportional to 2,417.74, 3,336.20 and 1,422.80 is: 1,963.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,417.74 : 3,336.20 = 1,422.80 : x
  2. Step 2: Convert to fraction form
    2,417.74/3,336.20 = 1,422.80/x
  3. Step 3: Cross multiply
    2,417.74x = 3,336.20 × 1,422.80
  4. Step 4: Simplify right side
    2,417.74x = 4,746,745.36
  5. Step 5: Solve for x
    x = 4,746,745.36/2,417.74
  6. Step 6: Final answer
    x = 1,963.30

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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.