Home / 2,219.81-3,329.71-904.11

Finding the Fourth Proportional to 2,219.81, 3,329.71 and 904.11

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Solution

The fourth proportional to 2,219.81, 3,329.71 and 904.11 is: 1,356.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,219.81 : 3,329.71 = 904.11 : x
  2. Step 2: Convert to fraction form
    2,219.81/3,329.71 = 904.11/x
  3. Step 3: Cross multiply
    2,219.81x = 3,329.71 × 904.11
  4. Step 4: Simplify right side
    2,219.81x = 3,010,428.09
  5. Step 5: Solve for x
    x = 3,010,428.09/2,219.81
  6. Step 6: Final answer
    x = 1,356.17

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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.