Home / 3,217.90-4,827.42-1,026.40

Finding the Fourth Proportional to 3,217.90, 4,827.42 and 1,026.40

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Solution

The fourth proportional to 3,217.90, 4,827.42 and 1,026.40 is: 1,539.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,217.90 : 4,827.42 = 1,026.40 : x
  2. Step 2: Convert to fraction form
    3,217.90/4,827.42 = 1,026.40/x
  3. Step 3: Cross multiply
    3,217.90x = 4,827.42 × 1,026.40
  4. Step 4: Simplify right side
    3,217.90x = 4,954,863.89
  5. Step 5: Solve for x
    x = 4,954,863.89/3,217.90
  6. Step 6: Final answer
    x = 1,539.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.