Home / 2,102.14-2,901.65-1,440.91

Finding the Fourth Proportional to 2,102.14, 2,901.65 and 1,440.91

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Solution

The fourth proportional to 2,102.14, 2,901.65 and 1,440.91 is: 1,988.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,102.14 : 2,901.65 = 1,440.91 : x
  2. Step 2: Convert to fraction form
    2,102.14/2,901.65 = 1,440.91/x
  3. Step 3: Cross multiply
    2,102.14x = 2,901.65 × 1,440.91
  4. Step 4: Simplify right side
    2,102.14x = 4,181,016.50
  5. Step 5: Solve for x
    x = 4,181,016.50/2,102.14
  6. Step 6: Final answer
    x = 1,988.93

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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.