Home / 7,720.29-11,575.19-2,453.72

Finding the Fourth Proportional to 7,720.29, 11,575.19 and 2,453.72

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Solution

The fourth proportional to 7,720.29, 11,575.19 and 2,453.72 is: 3,678.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,720.29 : 11,575.19 = 2,453.72 : x
  2. Step 2: Convert to fraction form
    7,720.29/11,575.19 = 2,453.72/x
  3. Step 3: Cross multiply
    7,720.29x = 11,575.19 × 2,453.72
  4. Step 4: Simplify right side
    7,720.29x = 28,402,252.57
  5. Step 5: Solve for x
    x = 28,402,252.57/7,720.29
  6. Step 6: Final answer
    x = 3,678.91

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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.