Home / 5,386.24-8,081.66-2,101.65

Finding the Fourth Proportional to 5,386.24, 8,081.66 and 2,101.65

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Solution

The fourth proportional to 5,386.24, 8,081.66 and 2,101.65 is: 3,153.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,386.24 : 8,081.66 = 2,101.65 : x
  2. Step 2: Convert to fraction form
    5,386.24/8,081.66 = 2,101.65/x
  3. Step 3: Cross multiply
    5,386.24x = 8,081.66 × 2,101.65
  4. Step 4: Simplify right side
    5,386.24x = 16,984,820.74
  5. Step 5: Solve for x
    x = 16,984,820.74/5,386.24
  6. Step 6: Final answer
    x = 3,153.37

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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.