Home / 5,097.65-7,646.48-1,399.90

Finding the Fourth Proportional to 5,097.65, 7,646.48 and 1,399.90

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Solution

The fourth proportional to 5,097.65, 7,646.48 and 1,399.90 is: 2,099.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,097.65 : 7,646.48 = 1,399.90 : x
  2. Step 2: Convert to fraction form
    5,097.65/7,646.48 = 1,399.90/x
  3. Step 3: Cross multiply
    5,097.65x = 7,646.48 × 1,399.90
  4. Step 4: Simplify right side
    5,097.65x = 10,704,281.24
  5. Step 5: Solve for x
    x = 10,704,281.24/5,097.65
  6. Step 6: Final answer
    x = 2,099.85

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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.