Home / 3,643.47-5,027.40-2,151.18

Finding the Fourth Proportional to 3,643.47, 5,027.40 and 2,151.18

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Solution

The fourth proportional to 3,643.47, 5,027.40 and 2,151.18 is: 2,968.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,643.47 : 5,027.40 = 2,151.18 : x
  2. Step 2: Convert to fraction form
    3,643.47/5,027.40 = 2,151.18/x
  3. Step 3: Cross multiply
    3,643.47x = 5,027.40 × 2,151.18
  4. Step 4: Simplify right side
    3,643.47x = 10,814,842.33
  5. Step 5: Solve for x
    x = 10,814,842.33/3,643.47
  6. Step 6: Final answer
    x = 2,968.28

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1.5x scale

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.