Home / 5,107.38-7,048.32-2,869.50

Finding the Fourth Proportional to 5,107.38, 7,048.32 and 2,869.50

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Solution

The fourth proportional to 5,107.38, 7,048.32 and 2,869.50 is: 3,959.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,107.38 : 7,048.32 = 2,869.50 : x
  2. Step 2: Convert to fraction form
    5,107.38/7,048.32 = 2,869.50/x
  3. Step 3: Cross multiply
    5,107.38x = 7,048.32 × 2,869.50
  4. Step 4: Simplify right side
    5,107.38x = 20,225,154.24
  5. Step 5: Solve for x
    x = 20,225,154.24/5,107.38
  6. Step 6: Final answer
    x = 3,959.99

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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.