Home / 1,559.11-2,151.65-896.18

Finding the Fourth Proportional to 1,559.11, 2,151.65 and 896.18

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Solution

The fourth proportional to 1,559.11, 2,151.65 and 896.18 is: 1,236.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,559.11 : 2,151.65 = 896.18 : x
  2. Step 2: Convert to fraction form
    1,559.11/2,151.65 = 896.18/x
  3. Step 3: Cross multiply
    1,559.11x = 2,151.65 × 896.18
  4. Step 4: Simplify right side
    1,559.11x = 1,928,258.94
  5. Step 5: Solve for x
    x = 1,928,258.94/1,559.11
  6. Step 6: Final answer
    x = 1,236.77

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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.