Home / 2,970.06-4,098.79-1,643.89

Finding the Fourth Proportional to 2,970.06, 4,098.79 and 1,643.89

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Solution

The fourth proportional to 2,970.06, 4,098.79 and 1,643.89 is: 2,268.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,970.06 : 4,098.79 = 1,643.89 : x
  2. Step 2: Convert to fraction form
    2,970.06/4,098.79 = 1,643.89/x
  3. Step 3: Cross multiply
    2,970.06x = 4,098.79 × 1,643.89
  4. Step 4: Simplify right side
    2,970.06x = 6,737,959.89
  5. Step 5: Solve for x
    x = 6,737,959.89/2,970.06
  6. Step 6: Final answer
    x = 2,268.63

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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.