Home / 1,817.84-2,509.28-1,072.14

Finding the Fourth Proportional to 1,817.84, 2,509.28 and 1,072.14

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Solution

The fourth proportional to 1,817.84, 2,509.28 and 1,072.14 is: 1,479.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,817.84 : 2,509.28 = 1,072.14 : x
  2. Step 2: Convert to fraction form
    1,817.84/2,509.28 = 1,072.14/x
  3. Step 3: Cross multiply
    1,817.84x = 2,509.28 × 1,072.14
  4. Step 4: Simplify right side
    1,817.84x = 2,690,288.71
  5. Step 5: Solve for x
    x = 2,690,288.71/1,817.84
  6. Step 6: Final answer
    x = 1,479.93

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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.