Home / 5,291.05-7,299.19-3,720.07

Finding the Fourth Proportional to 5,291.05, 7,299.19 and 3,720.07

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Solution

The fourth proportional to 5,291.05, 7,299.19 and 3,720.07 is: 5,131.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,291.05 : 7,299.19 = 3,720.07 : x
  2. Step 2: Convert to fraction form
    5,291.05/7,299.19 = 3,720.07/x
  3. Step 3: Cross multiply
    5,291.05x = 7,299.19 × 3,720.07
  4. Step 4: Simplify right side
    5,291.05x = 27,153,497.74
  5. Step 5: Solve for x
    x = 27,153,497.74/5,291.05
  6. Step 6: Final answer
    x = 5,131.97

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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.