Home / 5,040.75-6,956.79-2,887.50

Finding the Fourth Proportional to 5,040.75, 6,956.79 and 2,887.50

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Solution

The fourth proportional to 5,040.75, 6,956.79 and 2,887.50 is: 3,985.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,040.75 : 6,956.79 = 2,887.50 : x
  2. Step 2: Convert to fraction form
    5,040.75/6,956.79 = 2,887.50/x
  3. Step 3: Cross multiply
    5,040.75x = 6,956.79 × 2,887.50
  4. Step 4: Simplify right side
    5,040.75x = 20,087,707.25
  5. Step 5: Solve for x
    x = 20,087,707.25/5,040.75
  6. Step 6: Final answer
    x = 3,985.06

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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.