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Finding the Fourth Proportional to 2,901.07, 4,001.01 and 1,956.71

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Solution

The fourth proportional to 2,901.07, 4,001.01 and 1,956.71 is: 2,698.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,901.07 : 4,001.01 = 1,956.71 : x
  2. Step 2: Convert to fraction form
    2,901.07/4,001.01 = 1,956.71/x
  3. Step 3: Cross multiply
    2,901.07x = 4,001.01 × 1,956.71
  4. Step 4: Simplify right side
    2,901.07x = 7,828,829.95
  5. Step 5: Solve for x
    x = 7,828,829.95/2,901.07
  6. Step 6: Final answer
    x = 2,698.60

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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.