Home / 2,417.81-3,335.45-1,422.45

Finding the Fourth Proportional to 2,417.81, 3,335.45 and 1,422.45

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Solution

The fourth proportional to 2,417.81, 3,335.45 and 1,422.45 is: 1,962.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,417.81 : 3,335.45 = 1,422.45 : x
  2. Step 2: Convert to fraction form
    2,417.81/3,335.45 = 1,422.45/x
  3. Step 3: Cross multiply
    2,417.81x = 3,335.45 × 1,422.45
  4. Step 4: Simplify right side
    2,417.81x = 4,744,503.74
  5. Step 5: Solve for x
    x = 4,744,503.74/2,417.81
  6. Step 6: Final answer
    x = 1,962.32

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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.