Home / 2,454.21-3,386.75-1,335.15

Finding the Fourth Proportional to 2,454.21, 3,386.75 and 1,335.15

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Solution

The fourth proportional to 2,454.21, 3,386.75 and 1,335.15 is: 1,842.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,454.21 : 3,386.75 = 1,335.15 : x
  2. Step 2: Convert to fraction form
    2,454.21/3,386.75 = 1,335.15/x
  3. Step 3: Cross multiply
    2,454.21x = 3,386.75 × 1,335.15
  4. Step 4: Simplify right side
    2,454.21x = 4,521,819.26
  5. Step 5: Solve for x
    x = 4,521,819.26/2,454.21
  6. Step 6: Final answer
    x = 1,842.47

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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.