Home / 2,642.64-3,645.48-2,455.02

Finding the Fourth Proportional to 2,642.64, 3,645.48 and 2,455.02

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Solution

The fourth proportional to 2,642.64, 3,645.48 and 2,455.02 is: 3,386.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,642.64 : 3,645.48 = 2,455.02 : x
  2. Step 2: Convert to fraction form
    2,642.64/3,645.48 = 2,455.02/x
  3. Step 3: Cross multiply
    2,642.64x = 3,645.48 × 2,455.02
  4. Step 4: Simplify right side
    2,642.64x = 8,949,726.31
  5. Step 5: Solve for x
    x = 8,949,726.31/2,642.64
  6. Step 6: Final answer
    x = 3,386.66

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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.