Home / 7,343.48-11,005.86-3,439.28

Finding the Fourth Proportional to 7,343.48, 11,005.86 and 3,439.28

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Solution

The fourth proportional to 7,343.48, 11,005.86 and 3,439.28 is: 5,154.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,343.48 : 11,005.86 = 3,439.28 : x
  2. Step 2: Convert to fraction form
    7,343.48/11,005.86 = 3,439.28/x
  3. Step 3: Cross multiply
    7,343.48x = 11,005.86 × 3,439.28
  4. Step 4: Simplify right side
    7,343.48x = 37,852,234.18
  5. Step 5: Solve for x
    x = 37,852,234.18/7,343.48
  6. Step 6: Final answer
    x = 5,154.54

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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.