Home / 5,109.85-7,663.14-1,646.29

Finding the Fourth Proportional to 5,109.85, 7,663.14 and 1,646.29

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Solution

The fourth proportional to 5,109.85, 7,663.14 and 1,646.29 is: 2,468.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,109.85 : 7,663.14 = 1,646.29 : x
  2. Step 2: Convert to fraction form
    5,109.85/7,663.14 = 1,646.29/x
  3. Step 3: Cross multiply
    5,109.85x = 7,663.14 × 1,646.29
  4. Step 4: Simplify right side
    5,109.85x = 12,615,750.75
  5. Step 5: Solve for x
    x = 12,615,750.75/5,109.85
  6. Step 6: Final answer
    x = 2,468.91

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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.