Home / 7,341.60-11,002.80-5,287.20

Finding the Fourth Proportional to 7,341.60, 11,002.80 and 5,287.20

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Solution

The fourth proportional to 7,341.60, 11,002.80 and 5,287.20 is: 7,923.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,341.60 : 11,002.80 = 5,287.20 : x
  2. Step 2: Convert to fraction form
    7,341.60/11,002.80 = 5,287.20/x
  3. Step 3: Cross multiply
    7,341.60x = 11,002.80 × 5,287.20
  4. Step 4: Simplify right side
    7,341.60x = 58,174,004.16
  5. Step 5: Solve for x
    x = 58,174,004.16/7,341.60
  6. Step 6: Final answer
    x = 7,923.89

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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.