Home / 5,291.30-7,299.54-3,720.32

Finding the Fourth Proportional to 5,291.30, 7,299.54 and 3,720.32

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Solution

The fourth proportional to 5,291.30, 7,299.54 and 3,720.32 is: 5,132.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,291.30 : 7,299.54 = 3,720.32 : x
  2. Step 2: Convert to fraction form
    5,291.30/7,299.54 = 3,720.32/x
  3. Step 3: Cross multiply
    5,291.30x = 7,299.54 × 3,720.32
  4. Step 4: Simplify right side
    5,291.30x = 27,156,624.65
  5. Step 5: Solve for x
    x = 27,156,624.65/5,291.30
  6. Step 6: Final answer
    x = 5,132.32

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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.