Home / 5,263.85-7,888.92-2,140.21

Finding the Fourth Proportional to 5,263.85, 7,888.92 and 2,140.21

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Solution

The fourth proportional to 5,263.85, 7,888.92 and 2,140.21 is: 3,207.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,263.85 : 7,888.92 = 2,140.21 : x
  2. Step 2: Convert to fraction form
    5,263.85/7,888.92 = 2,140.21/x
  3. Step 3: Cross multiply
    5,263.85x = 7,888.92 × 2,140.21
  4. Step 4: Simplify right side
    5,263.85x = 16,883,945.47
  5. Step 5: Solve for x
    x = 16,883,945.47/5,263.85
  6. Step 6: Final answer
    x = 3,207.53

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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.