Home / 2,390.86-3,298.26-1,726.66

Finding the Fourth Proportional to 2,390.86, 3,298.26 and 1,726.66

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Solution

The fourth proportional to 2,390.86, 3,298.26 and 1,726.66 is: 2,381.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,390.86 : 3,298.26 = 1,726.66 : x
  2. Step 2: Convert to fraction form
    2,390.86/3,298.26 = 1,726.66/x
  3. Step 3: Cross multiply
    2,390.86x = 3,298.26 × 1,726.66
  4. Step 4: Simplify right side
    2,390.86x = 5,694,973.61
  5. Step 5: Solve for x
    x = 5,694,973.61/2,390.86
  6. Step 6: Final answer
    x = 2,381.98

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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.