Home / 2,985.95-4,121.15-1,726.83

Finding the Fourth Proportional to 2,985.95, 4,121.15 and 1,726.83

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Solution

The fourth proportional to 2,985.95, 4,121.15 and 1,726.83 is: 2,383.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,985.95 : 4,121.15 = 1,726.83 : x
  2. Step 2: Convert to fraction form
    2,985.95/4,121.15 = 1,726.83/x
  3. Step 3: Cross multiply
    2,985.95x = 4,121.15 × 1,726.83
  4. Step 4: Simplify right side
    2,985.95x = 7,116,525.45
  5. Step 5: Solve for x
    x = 7,116,525.45/2,985.95
  6. Step 6: Final answer
    x = 2,383.34

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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.