Home / 2,039.42-2,813.92-1,155.10

Finding the Fourth Proportional to 2,039.42, 2,813.92 and 1,155.10

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Solution

The fourth proportional to 2,039.42, 2,813.92 and 1,155.10 is: 1,593.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,039.42 : 2,813.92 = 1,155.10 : x
  2. Step 2: Convert to fraction form
    2,039.42/2,813.92 = 1,155.10/x
  3. Step 3: Cross multiply
    2,039.42x = 2,813.92 × 1,155.10
  4. Step 4: Simplify right side
    2,039.42x = 3,250,358.99
  5. Step 5: Solve for x
    x = 3,250,358.99/2,039.42
  6. Step 6: Final answer
    x = 1,593.77

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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.