Home / 5,186.03-7,156.50-2,828.18

Finding the Fourth Proportional to 5,186.03, 7,156.50 and 2,828.18

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Solution

The fourth proportional to 5,186.03, 7,156.50 and 2,828.18 is: 3,902.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,186.03 : 7,156.50 = 2,828.18 : x
  2. Step 2: Convert to fraction form
    5,186.03/7,156.50 = 2,828.18/x
  3. Step 3: Cross multiply
    5,186.03x = 7,156.50 × 2,828.18
  4. Step 4: Simplify right side
    5,186.03x = 20,239,870.17
  5. Step 5: Solve for x
    x = 20,239,870.17/5,186.03
  6. Step 6: Final answer
    x = 3,902.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.