Home / 5,117.76-7,675.38-1,419.12

Finding the Fourth Proportional to 5,117.76, 7,675.38 and 1,419.12

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Solution

The fourth proportional to 5,117.76, 7,675.38 and 1,419.12 is: 2,128.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,117.76 : 7,675.38 = 1,419.12 : x
  2. Step 2: Convert to fraction form
    5,117.76/7,675.38 = 1,419.12/x
  3. Step 3: Cross multiply
    5,117.76x = 7,675.38 × 1,419.12
  4. Step 4: Simplify right side
    5,117.76x = 10,892,285.27
  5. Step 5: Solve for x
    x = 10,892,285.27/5,117.76
  6. Step 6: Final answer
    x = 2,128.33

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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.