Home / 2,219.57-3,061.68-1,434.08

Finding the Fourth Proportional to 2,219.57, 3,061.68 and 1,434.08

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Solution

The fourth proportional to 2,219.57, 3,061.68 and 1,434.08 is: 1,978.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,219.57 : 3,061.68 = 1,434.08 : x
  2. Step 2: Convert to fraction form
    2,219.57/3,061.68 = 1,434.08/x
  3. Step 3: Cross multiply
    2,219.57x = 3,061.68 × 1,434.08
  4. Step 4: Simplify right side
    2,219.57x = 4,390,678.75
  5. Step 5: Solve for x
    x = 4,390,678.75/2,219.57
  6. Step 6: Final answer
    x = 1,978.17

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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.