Home / 3,643.08-5,026.28-2,151.51

Finding the Fourth Proportional to 3,643.08, 5,026.28 and 2,151.51

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Solution

The fourth proportional to 3,643.08, 5,026.28 and 2,151.51 is: 2,968.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,643.08 : 5,026.28 = 2,151.51 : x
  2. Step 2: Convert to fraction form
    3,643.08/5,026.28 = 2,151.51/x
  3. Step 3: Cross multiply
    3,643.08x = 5,026.28 × 2,151.51
  4. Step 4: Simplify right side
    3,643.08x = 10,814,080.93
  5. Step 5: Solve for x
    x = 10,814,080.93/3,643.08
  6. Step 6: Final answer
    x = 2,968.39

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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.