Home / 7,140.06-10,708.47-2,756.34

Finding the Fourth Proportional to 7,140.06, 10,708.47 and 2,756.34

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Solution

The fourth proportional to 7,140.06, 10,708.47 and 2,756.34 is: 4,133.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,140.06 : 10,708.47 = 2,756.34 : x
  2. Step 2: Convert to fraction form
    7,140.06/10,708.47 = 2,756.34/x
  3. Step 3: Cross multiply
    7,140.06x = 10,708.47 × 2,756.34
  4. Step 4: Simplify right side
    7,140.06x = 29,516,184.20
  5. Step 5: Solve for x
    x = 29,516,184.20/7,140.06
  6. Step 6: Final answer
    x = 4,133.88

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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.