Home / 2,108.59-2,909.23-1,362.99

Finding the Fourth Proportional to 2,108.59, 2,909.23 and 1,362.99

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Solution

The fourth proportional to 2,108.59, 2,909.23 and 1,362.99 is: 1,880.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,108.59 : 2,909.23 = 1,362.99 : x
  2. Step 2: Convert to fraction form
    2,108.59/2,909.23 = 1,362.99/x
  3. Step 3: Cross multiply
    2,108.59x = 2,909.23 × 1,362.99
  4. Step 4: Simplify right side
    2,108.59x = 3,965,251.40
  5. Step 5: Solve for x
    x = 3,965,251.40/2,108.59
  6. Step 6: Final answer
    x = 1,880.52

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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.