Home / 2,194.18-3,290.14-807.16

Finding the Fourth Proportional to 2,194.18, 3,290.14 and 807.16

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Solution

The fourth proportional to 2,194.18, 3,290.14 and 807.16 is: 1,210.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,194.18 : 3,290.14 = 807.16 : x
  2. Step 2: Convert to fraction form
    2,194.18/3,290.14 = 807.16/x
  3. Step 3: Cross multiply
    2,194.18x = 3,290.14 × 807.16
  4. Step 4: Simplify right side
    2,194.18x = 2,655,669.40
  5. Step 5: Solve for x
    x = 2,655,669.40/2,194.18
  6. Step 6: Final answer
    x = 1,210.32

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Double scale
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Similar ratio
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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.