Home / 5,402.13-8,105.55-1,894.65

Finding the Fourth Proportional to 5,402.13, 8,105.55 and 1,894.65

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Solution

The fourth proportional to 5,402.13, 8,105.55 and 1,894.65 is: 2,842.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,402.13 : 8,105.55 = 1,894.65 : x
  2. Step 2: Convert to fraction form
    5,402.13/8,105.55 = 1,894.65/x
  3. Step 3: Cross multiply
    5,402.13x = 8,105.55 × 1,894.65
  4. Step 4: Simplify right side
    5,402.13x = 15,357,180.31
  5. Step 5: Solve for x
    x = 15,357,180.31/5,402.13
  6. Step 6: Final answer
    x = 2,842.80

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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.