Home / 2,719.70-4,077.15-2,428.10

Finding the Fourth Proportional to 2,719.70, 4,077.15 and 2,428.10

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Solution

The fourth proportional to 2,719.70, 4,077.15 and 2,428.10 is: 3,640.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,719.70 : 4,077.15 = 2,428.10 : x
  2. Step 2: Convert to fraction form
    2,719.70/4,077.15 = 2,428.10/x
  3. Step 3: Cross multiply
    2,719.70x = 4,077.15 × 2,428.10
  4. Step 4: Simplify right side
    2,719.70x = 9,899,727.92
  5. Step 5: Solve for x
    x = 9,899,727.92/2,719.70
  6. Step 6: Final answer
    x = 3,640.01

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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.