Home / 1,239.18-1,706.04-1,083.84

Finding the Fourth Proportional to 1,239.18, 1,706.04 and 1,083.84

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Solution

The fourth proportional to 1,239.18, 1,706.04 and 1,083.84 is: 1,492.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239.18 : 1,706.04 = 1,083.84 : x
  2. Step 2: Convert to fraction form
    1,239.18/1,706.04 = 1,083.84/x
  3. Step 3: Cross multiply
    1,239.18x = 1,706.04 × 1,083.84
  4. Step 4: Simplify right side
    1,239.18x = 1,849,074.39
  5. Step 5: Solve for x
    x = 1,849,074.39/1,239.18
  6. Step 6: Final answer
    x = 1,492.18

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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.