Home / 2,397.40-3,308.45-1,335.21

Finding the Fourth Proportional to 2,397.40, 3,308.45 and 1,335.21

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Solution

The fourth proportional to 2,397.40, 3,308.45 and 1,335.21 is: 1,842.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,397.40 : 3,308.45 = 1,335.21 : x
  2. Step 2: Convert to fraction form
    2,397.40/3,308.45 = 1,335.21/x
  3. Step 3: Cross multiply
    2,397.40x = 3,308.45 × 1,335.21
  4. Step 4: Simplify right side
    2,397.40x = 4,417,456.44
  5. Step 5: Solve for x
    x = 4,417,456.44/2,397.40
  6. Step 6: Final answer
    x = 1,842.60

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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.