Home / 5,188.14-7,820.40-4,887.06

Finding the Fourth Proportional to 5,188.14, 7,820.40 and 4,887.06

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Solution

The fourth proportional to 5,188.14, 7,820.40 and 4,887.06 is: 7,366.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,188.14 : 7,820.40 = 4,887.06 : x
  2. Step 2: Convert to fraction form
    5,188.14/7,820.40 = 4,887.06/x
  3. Step 3: Cross multiply
    5,188.14x = 7,820.40 × 4,887.06
  4. Step 4: Simplify right side
    5,188.14x = 38,218,764.02
  5. Step 5: Solve for x
    x = 38,218,764.02/5,188.14
  6. Step 6: Final answer
    x = 7,366.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.