Home / 7,340.16-11,001.28-3,439.36

Finding the Fourth Proportional to 7,340.16, 11,001.28 and 3,439.36

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Solution

The fourth proportional to 7,340.16, 11,001.28 and 3,439.36 is: 5,154.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,340.16 : 11,001.28 = 3,439.36 : x
  2. Step 2: Convert to fraction form
    7,340.16/11,001.28 = 3,439.36/x
  3. Step 3: Cross multiply
    7,340.16x = 11,001.28 × 3,439.36
  4. Step 4: Simplify right side
    7,340.16x = 37,837,362.38
  5. Step 5: Solve for x
    x = 37,837,362.38/7,340.16
  6. Step 6: Final answer
    x = 5,154.84

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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.