Home / 1,518.28-2,096.19-1,239.18

Finding the Fourth Proportional to 1,518.28, 2,096.19 and 1,239.18

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Solution

The fourth proportional to 1,518.28, 2,096.19 and 1,239.18 is: 1,710.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,518.28 : 2,096.19 = 1,239.18 : x
  2. Step 2: Convert to fraction form
    1,518.28/2,096.19 = 1,239.18/x
  3. Step 3: Cross multiply
    1,518.28x = 2,096.19 × 1,239.18
  4. Step 4: Simplify right side
    1,518.28x = 2,597,551.81
  5. Step 5: Solve for x
    x = 2,597,551.81/1,518.28
  6. Step 6: Final answer
    x = 1,710.85

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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.