Home / 5,097.29-7,645.91-1,399.55

Finding the Fourth Proportional to 5,097.29, 7,645.91 and 1,399.55

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Solution

The fourth proportional to 5,097.29, 7,645.91 and 1,399.55 is: 2,099.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,097.29 : 7,645.91 = 1,399.55 : x
  2. Step 2: Convert to fraction form
    5,097.29/7,645.91 = 1,399.55/x
  3. Step 3: Cross multiply
    5,097.29x = 7,645.91 × 1,399.55
  4. Step 4: Simplify right side
    5,097.29x = 10,700,788.11
  5. Step 5: Solve for x
    x = 10,700,788.11/5,097.29
  6. Step 6: Final answer
    x = 2,099.31

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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.