Home / 1,849.60-2,550.75-1,378.66

Finding the Fourth Proportional to 1,849.60, 2,550.75 and 1,378.66

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Solution

The fourth proportional to 1,849.60, 2,550.75 and 1,378.66 is: 1,901.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,849.60 : 2,550.75 = 1,378.66 : x
  2. Step 2: Convert to fraction form
    1,849.60/2,550.75 = 1,378.66/x
  3. Step 3: Cross multiply
    1,849.60x = 2,550.75 × 1,378.66
  4. Step 4: Simplify right side
    1,849.60x = 3,516,617.00
  5. Step 5: Solve for x
    x = 3,516,617.00/1,849.60
  6. Step 6: Final answer
    x = 1,901.29

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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.