Home / 2,314.50-3,470.40-1,218.60

Finding the Fourth Proportional to 2,314.50, 3,470.40 and 1,218.60

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Solution

The fourth proportional to 2,314.50, 3,470.40 and 1,218.60 is: 1,827.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,314.50 : 3,470.40 = 1,218.60 : x
  2. Step 2: Convert to fraction form
    2,314.50/3,470.40 = 1,218.60/x
  3. Step 3: Cross multiply
    2,314.50x = 3,470.40 × 1,218.60
  4. Step 4: Simplify right side
    2,314.50x = 4,229,029.44
  5. Step 5: Solve for x
    x = 4,229,029.44/2,314.50
  6. Step 6: Final answer
    x = 1,827.19

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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.