Home / 1,535.76-2,120.20-1,082.23

Finding the Fourth Proportional to 1,535.76, 2,120.20 and 1,082.23

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Solution

The fourth proportional to 1,535.76, 2,120.20 and 1,082.23 is: 1,494.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,535.76 : 2,120.20 = 1,082.23 : x
  2. Step 2: Convert to fraction form
    1,535.76/2,120.20 = 1,082.23/x
  3. Step 3: Cross multiply
    1,535.76x = 2,120.20 × 1,082.23
  4. Step 4: Simplify right side
    1,535.76x = 2,294,536.04
  5. Step 5: Solve for x
    x = 2,294,536.04/1,535.76
  6. Step 6: Final answer
    x = 1,494.07

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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.