Home / 5,465.86-8,196.96-2,178.06

Finding the Fourth Proportional to 5,465.86, 8,196.96 and 2,178.06

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Solution

The fourth proportional to 5,465.86, 8,196.96 and 2,178.06 is: 3,266.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,465.86 : 8,196.96 = 2,178.06 : x
  2. Step 2: Convert to fraction form
    5,465.86/8,196.96 = 2,178.06/x
  3. Step 3: Cross multiply
    5,465.86x = 8,196.96 × 2,178.06
  4. Step 4: Simplify right side
    5,465.86x = 17,853,470.70
  5. Step 5: Solve for x
    x = 17,853,470.70/5,465.86
  6. Step 6: Final answer
    x = 3,266.36

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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.