Home / 5,247.30-7,870.97-2,127.36

Finding the Fourth Proportional to 5,247.30, 7,870.97 and 2,127.36

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Solution

The fourth proportional to 5,247.30, 7,870.97 and 2,127.36 is: 3,191.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,247.30 : 7,870.97 = 2,127.36 : x
  2. Step 2: Convert to fraction form
    5,247.30/7,870.97 = 2,127.36/x
  3. Step 3: Cross multiply
    5,247.30x = 7,870.97 × 2,127.36
  4. Step 4: Simplify right side
    5,247.30x = 16,744,386.74
  5. Step 5: Solve for x
    x = 16,744,386.74/5,247.30
  6. Step 6: Final answer
    x = 3,191.05

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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.