Home / 2,417.36-3,335.88-1,422.80

Finding the Fourth Proportional to 2,417.36, 3,335.88 and 1,422.80

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Solution

The fourth proportional to 2,417.36, 3,335.88 and 1,422.80 is: 1,963.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,417.36 : 3,335.88 = 1,422.80 : x
  2. Step 2: Convert to fraction form
    2,417.36/3,335.88 = 1,422.80/x
  3. Step 3: Cross multiply
    2,417.36x = 3,335.88 × 1,422.80
  4. Step 4: Simplify right side
    2,417.36x = 4,746,290.06
  5. Step 5: Solve for x
    x = 4,746,290.06/2,417.36
  6. Step 6: Final answer
    x = 1,963.42

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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.