Home / 2,390.28-3,583.08-1,219.74

Finding the Fourth Proportional to 2,390.28, 3,583.08 and 1,219.74

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Solution

The fourth proportional to 2,390.28, 3,583.08 and 1,219.74 is: 1,828.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,390.28 : 3,583.08 = 1,219.74 : x
  2. Step 2: Convert to fraction form
    2,390.28/3,583.08 = 1,219.74/x
  3. Step 3: Cross multiply
    2,390.28x = 3,583.08 × 1,219.74
  4. Step 4: Simplify right side
    2,390.28x = 4,370,426.00
  5. Step 5: Solve for x
    x = 4,370,426.00/2,390.28
  6. Step 6: Final answer
    x = 1,828.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.