Home / 4,291.20-5,918.40-2,719.68

Finding the Fourth Proportional to 4,291.20, 5,918.40 and 2,719.68

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Solution

The fourth proportional to 4,291.20, 5,918.40 and 2,719.68 is: 3,750.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,291.20 : 5,918.40 = 2,719.68 : x
  2. Step 2: Convert to fraction form
    4,291.20/5,918.40 = 2,719.68/x
  3. Step 3: Cross multiply
    4,291.20x = 5,918.40 × 2,719.68
  4. Step 4: Simplify right side
    4,291.20x = 16,096,154.11
  5. Step 5: Solve for x
    x = 16,096,154.11/4,291.20
  6. Step 6: Final answer
    x = 3,750.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.