Home / 7,346.42-10,138.06-3,989.23

Finding the Fourth Proportional to 7,346.42, 10,138.06 and 3,989.23

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Solution

The fourth proportional to 7,346.42, 10,138.06 and 3,989.23 is: 5,505.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,346.42 : 10,138.06 = 3,989.23 : x
  2. Step 2: Convert to fraction form
    7,346.42/10,138.06 = 3,989.23/x
  3. Step 3: Cross multiply
    7,346.42x = 10,138.06 × 3,989.23
  4. Step 4: Simplify right side
    7,346.42x = 40,443,032.74
  5. Step 5: Solve for x
    x = 40,443,032.74/7,346.42
  6. Step 6: Final answer
    x = 5,505.14

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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.