Home / 2,945.85-4,066.66-1,869.66

Finding the Fourth Proportional to 2,945.85, 4,066.66 and 1,869.66

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Solution

The fourth proportional to 2,945.85, 4,066.66 and 1,869.66 is: 2,581.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,945.85 : 4,066.66 = 1,869.66 : x
  2. Step 2: Convert to fraction form
    2,945.85/4,066.66 = 1,869.66/x
  3. Step 3: Cross multiply
    2,945.85x = 4,066.66 × 1,869.66
  4. Step 4: Simplify right side
    2,945.85x = 7,603,262.19
  5. Step 5: Solve for x
    x = 7,603,262.19/2,945.85
  6. Step 6: Final answer
    x = 2,581.01

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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.