Home / 5,215.50-7,821.45-2,094.57

Finding the Fourth Proportional to 5,215.50, 7,821.45 and 2,094.57

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Solution

The fourth proportional to 5,215.50, 7,821.45 and 2,094.57 is: 3,141.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,215.50 : 7,821.45 = 2,094.57 : x
  2. Step 2: Convert to fraction form
    5,215.50/7,821.45 = 2,094.57/x
  3. Step 3: Cross multiply
    5,215.50x = 7,821.45 × 2,094.57
  4. Step 4: Simplify right side
    5,215.50x = 16,382,574.53
  5. Step 5: Solve for x
    x = 16,382,574.53/5,215.50
  6. Step 6: Final answer
    x = 3,141.13

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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.