Home / 3,726.61-5,143.86-2,400.31

Finding the Fourth Proportional to 3,726.61, 5,143.86 and 2,400.31

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Solution

The fourth proportional to 3,726.61, 5,143.86 and 2,400.31 is: 3,313.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,726.61 : 5,143.86 = 2,400.31 : x
  2. Step 2: Convert to fraction form
    3,726.61/5,143.86 = 2,400.31/x
  3. Step 3: Cross multiply
    3,726.61x = 5,143.86 × 2,400.31
  4. Step 4: Simplify right side
    3,726.61x = 12,346,832.88
  5. Step 5: Solve for x
    x = 12,346,832.88/3,726.61
  6. Step 6: Final answer
    x = 3,313.16

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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.