Home / 1,812.75-2,501.55-1,066.73

Finding the Fourth Proportional to 1,812.75, 2,501.55 and 1,066.73

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Solution

The fourth proportional to 1,812.75, 2,501.55 and 1,066.73 is: 1,472.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,812.75 : 2,501.55 = 1,066.73 : x
  2. Step 2: Convert to fraction form
    1,812.75/2,501.55 = 1,066.73/x
  3. Step 3: Cross multiply
    1,812.75x = 2,501.55 × 1,066.73
  4. Step 4: Simplify right side
    1,812.75x = 2,668,465.92
  5. Step 5: Solve for x
    x = 2,668,465.92/1,812.75
  6. Step 6: Final answer
    x = 1,472.05

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Half scale
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Double scale
Find fourth proportional to 1,813.75, 2,502.93 and 1,067.73
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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.