Home / 2,641.04-3,642.36-1,645.28

Finding the Fourth Proportional to 2,641.04, 3,642.36 and 1,645.28

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Solution

The fourth proportional to 2,641.04, 3,642.36 and 1,645.28 is: 2,269.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,641.04 : 3,642.36 = 1,645.28 : x
  2. Step 2: Convert to fraction form
    2,641.04/3,642.36 = 1,645.28/x
  3. Step 3: Cross multiply
    2,641.04x = 3,642.36 × 1,645.28
  4. Step 4: Simplify right side
    2,641.04x = 5,992,702.06
  5. Step 5: Solve for x
    x = 5,992,702.06/2,641.04
  6. Step 6: Final answer
    x = 2,269.07

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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.