Home / 1,805.19-2,490.60-1,019.23

Finding the Fourth Proportional to 1,805.19, 2,490.60 and 1,019.23

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Solution

The fourth proportional to 1,805.19, 2,490.60 and 1,019.23 is: 1,406.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,805.19 : 2,490.60 = 1,019.23 : x
  2. Step 2: Convert to fraction form
    1,805.19/2,490.60 = 1,019.23/x
  3. Step 3: Cross multiply
    1,805.19x = 2,490.60 × 1,019.23
  4. Step 4: Simplify right side
    1,805.19x = 2,538,500.11
  5. Step 5: Solve for x
    x = 2,538,500.11/1,805.19
  6. Step 6: Final answer
    x = 1,406.23

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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.