Home / 1,811.77-2,500.67-1,066.20

Finding the Fourth Proportional to 1,811.77, 2,500.67 and 1,066.20

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Solution

The fourth proportional to 1,811.77, 2,500.67 and 1,066.20 is: 1,471.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,811.77 : 2,500.67 = 1,066.20 : x
  2. Step 2: Convert to fraction form
    1,811.77/2,500.67 = 1,066.20/x
  3. Step 3: Cross multiply
    1,811.77x = 2,500.67 × 1,066.20
  4. Step 4: Simplify right side
    1,811.77x = 2,666,207.64
  5. Step 5: Solve for x
    x = 2,666,207.64/1,811.77
  6. Step 6: Final answer
    x = 1,471.61

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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.