Home / 1,813.40-2,720.48-1,033.78

Finding the Fourth Proportional to 1,813.40, 2,720.48 and 1,033.78

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Solution

The fourth proportional to 1,813.40, 2,720.48 and 1,033.78 is: 1,550.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,813.40 : 2,720.48 = 1,033.78 : x
  2. Step 2: Convert to fraction form
    1,813.40/2,720.48 = 1,033.78/x
  3. Step 3: Cross multiply
    1,813.40x = 2,720.48 × 1,033.78
  4. Step 4: Simplify right side
    1,813.40x = 2,812,377.81
  5. Step 5: Solve for x
    x = 2,812,377.81/1,813.40
  6. Step 6: Final answer
    x = 1,550.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.