Home / 7,127.19-10,688.36-2,744.28

Finding the Fourth Proportional to 7,127.19, 10,688.36 and 2,744.28

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Solution

The fourth proportional to 7,127.19, 10,688.36 and 2,744.28 is: 4,115.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,127.19 : 10,688.36 = 2,744.28 : x
  2. Step 2: Convert to fraction form
    7,127.19/10,688.36 = 2,744.28/x
  3. Step 3: Cross multiply
    7,127.19x = 10,688.36 × 2,744.28
  4. Step 4: Simplify right side
    7,127.19x = 29,331,838.86
  5. Step 5: Solve for x
    x = 29,331,838.86/7,127.19
  6. Step 6: Final answer
    x = 4,115.48

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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.