Home / 2,077.64-2,867.15-1,291.69

Finding the Fourth Proportional to 2,077.64, 2,867.15 and 1,291.69

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Solution

The fourth proportional to 2,077.64, 2,867.15 and 1,291.69 is: 1,782.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,077.64 : 2,867.15 = 1,291.69 : x
  2. Step 2: Convert to fraction form
    2,077.64/2,867.15 = 1,291.69/x
  3. Step 3: Cross multiply
    2,077.64x = 2,867.15 × 1,291.69
  4. Step 4: Simplify right side
    2,077.64x = 3,703,455.36
  5. Step 5: Solve for x
    x = 3,703,455.36/2,077.64
  6. Step 6: Final answer
    x = 1,782.53

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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.