Home / 2,102.86-2,901.91-1,158.74

Finding the Fourth Proportional to 2,102.86, 2,901.91 and 1,158.74

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Solution

The fourth proportional to 2,102.86, 2,901.91 and 1,158.74 is: 1,599.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,102.86 : 2,901.91 = 1,158.74 : x
  2. Step 2: Convert to fraction form
    2,102.86/2,901.91 = 1,158.74/x
  3. Step 3: Cross multiply
    2,102.86x = 2,901.91 × 1,158.74
  4. Step 4: Simplify right side
    2,102.86x = 3,362,553.40
  5. Step 5: Solve for x
    x = 3,362,553.40/2,102.86
  6. Step 6: Final answer
    x = 1,599.04

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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.