Home / 2,288.17-3,432.26-1,312.20

Finding the Fourth Proportional to 2,288.17, 3,432.26 and 1,312.20

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Solution

The fourth proportional to 2,288.17, 3,432.26 and 1,312.20 is: 1,968.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,288.17 : 3,432.26 = 1,312.20 : x
  2. Step 2: Convert to fraction form
    2,288.17/3,432.26 = 1,312.20/x
  3. Step 3: Cross multiply
    2,288.17x = 3,432.26 × 1,312.20
  4. Step 4: Simplify right side
    2,288.17x = 4,503,811.57
  5. Step 5: Solve for x
    x = 4,503,811.57/2,288.17
  6. Step 6: Final answer
    x = 1,968.30

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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.