Home / 5,097.33-7,643.57-1,978.83

Finding the Fourth Proportional to 5,097.33, 7,643.57 and 1,978.83

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Solution

The fourth proportional to 5,097.33, 7,643.57 and 1,978.83 is: 2,967.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,097.33 : 7,643.57 = 1,978.83 : x
  2. Step 2: Convert to fraction form
    5,097.33/7,643.57 = 1,978.83/x
  3. Step 3: Cross multiply
    5,097.33x = 7,643.57 × 1,978.83
  4. Step 4: Simplify right side
    5,097.33x = 15,125,315.73
  5. Step 5: Solve for x
    x = 15,125,315.73/5,097.33
  6. Step 6: Final answer
    x = 2,967.30

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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.