Home / 3,191.19-4,758.62-2,802.79

Finding the Fourth Proportional to 3,191.19, 4,758.62 and 2,802.79

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Solution

The fourth proportional to 3,191.19, 4,758.62 and 2,802.79 is: 4,179.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,191.19 : 4,758.62 = 2,802.79 : x
  2. Step 2: Convert to fraction form
    3,191.19/4,758.62 = 2,802.79/x
  3. Step 3: Cross multiply
    3,191.19x = 4,758.62 × 2,802.79
  4. Step 4: Simplify right side
    3,191.19x = 13,337,412.55
  5. Step 5: Solve for x
    x = 13,337,412.55/3,191.19
  6. Step 6: Final answer
    x = 4,179.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.