Home / 2,862.90-4,293.06-1,218.60

Finding the Fourth Proportional to 2,862.90, 4,293.06 and 1,218.60

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Solution

The fourth proportional to 2,862.90, 4,293.06 and 1,218.60 is: 1,827.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,862.90 : 4,293.06 = 1,218.60 : x
  2. Step 2: Convert to fraction form
    2,862.90/4,293.06 = 1,218.60/x
  3. Step 3: Cross multiply
    2,862.90x = 4,293.06 × 1,218.60
  4. Step 4: Simplify right side
    2,862.90x = 5,231,522.92
  5. Step 5: Solve for x
    x = 5,231,522.92/2,862.90
  6. Step 6: Final answer
    x = 1,827.35

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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.