Home / 2,263.79-3,120.76-1,589.55

Finding the Fourth Proportional to 2,263.79, 3,120.76 and 1,589.55

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Solution

The fourth proportional to 2,263.79, 3,120.76 and 1,589.55 is: 2,191.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,263.79 : 3,120.76 = 1,589.55 : x
  2. Step 2: Convert to fraction form
    2,263.79/3,120.76 = 1,589.55/x
  3. Step 3: Cross multiply
    2,263.79x = 3,120.76 × 1,589.55
  4. Step 4: Simplify right side
    2,263.79x = 4,960,600.08
  5. Step 5: Solve for x
    x = 4,960,600.08/2,263.79
  6. Step 6: Final answer
    x = 2,191.28

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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.