Home / 2,900.77-4,003.37-1,721.95

Finding the Fourth Proportional to 2,900.77, 4,003.37 and 1,721.95

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Solution

The fourth proportional to 2,900.77, 4,003.37 and 1,721.95 is: 2,376.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,900.77 : 4,003.37 = 1,721.95 : x
  2. Step 2: Convert to fraction form
    2,900.77/4,003.37 = 1,721.95/x
  3. Step 3: Cross multiply
    2,900.77x = 4,003.37 × 1,721.95
  4. Step 4: Simplify right side
    2,900.77x = 6,893,602.97
  5. Step 5: Solve for x
    x = 6,893,602.97/2,900.77
  6. Step 6: Final answer
    x = 2,376.47

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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.