Home / 1,927.17-2,659.50-1,229.76

Finding the Fourth Proportional to 1,927.17, 2,659.50 and 1,229.76

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Solution

The fourth proportional to 1,927.17, 2,659.50 and 1,229.76 is: 1,697.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,927.17 : 2,659.50 = 1,229.76 : x
  2. Step 2: Convert to fraction form
    1,927.17/2,659.50 = 1,229.76/x
  3. Step 3: Cross multiply
    1,927.17x = 2,659.50 × 1,229.76
  4. Step 4: Simplify right side
    1,927.17x = 3,270,546.72
  5. Step 5: Solve for x
    x = 3,270,546.72/1,927.17
  6. Step 6: Final answer
    x = 1,697.07

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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.