Home / 1,535.92-2,121.07-1,313.58

Finding the Fourth Proportional to 1,535.92, 2,121.07 and 1,313.58

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Solution

The fourth proportional to 1,535.92, 2,121.07 and 1,313.58 is: 1,814.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,535.92 : 2,121.07 = 1,313.58 : x
  2. Step 2: Convert to fraction form
    1,535.92/2,121.07 = 1,313.58/x
  3. Step 3: Cross multiply
    1,535.92x = 2,121.07 × 1,313.58
  4. Step 4: Simplify right side
    1,535.92x = 2,786,195.13
  5. Step 5: Solve for x
    x = 2,786,195.13/1,535.92
  6. Step 6: Final answer
    x = 1,814.02

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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.