Home / 2,798.13-4,197.20-718.14

Finding the Fourth Proportional to 2,798.13, 4,197.20 and 718.14

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Solution

The fourth proportional to 2,798.13, 4,197.20 and 718.14 is: 1,077.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,798.13 : 4,197.20 = 718.14 : x
  2. Step 2: Convert to fraction form
    2,798.13/4,197.20 = 718.14/x
  3. Step 3: Cross multiply
    2,798.13x = 4,197.20 × 718.14
  4. Step 4: Simplify right side
    2,798.13x = 3,014,177.21
  5. Step 5: Solve for x
    x = 3,014,177.21/2,798.13
  6. Step 6: Final answer
    x = 1,077.21

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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.