Home / 4,870.85-6,713.87-3,806.75

Finding the Fourth Proportional to 4,870.85, 6,713.87 and 3,806.75

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Solution

The fourth proportional to 4,870.85, 6,713.87 and 3,806.75 is: 5,247.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,870.85 : 6,713.87 = 3,806.75 : x
  2. Step 2: Convert to fraction form
    4,870.85/6,713.87 = 3,806.75/x
  3. Step 3: Cross multiply
    4,870.85x = 6,713.87 × 3,806.75
  4. Step 4: Simplify right side
    4,870.85x = 25,557,972.02
  5. Step 5: Solve for x
    x = 25,557,972.02/4,870.85
  6. Step 6: Final answer
    x = 5,247.13

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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.