Home / 1,901.25-2,623.77-1,115.28

Finding the Fourth Proportional to 1,901.25, 2,623.77 and 1,115.28

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Solution

The fourth proportional to 1,901.25, 2,623.77 and 1,115.28 is: 1,539.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,901.25 : 2,623.77 = 1,115.28 : x
  2. Step 2: Convert to fraction form
    1,901.25/2,623.77 = 1,115.28/x
  3. Step 3: Cross multiply
    1,901.25x = 2,623.77 × 1,115.28
  4. Step 4: Simplify right side
    1,901.25x = 2,926,238.21
  5. Step 5: Solve for x
    x = 2,926,238.21/1,901.25
  6. Step 6: Final answer
    x = 1,539.11

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1.5x scale

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.