Home / 1,306.09-1,962.96-1,088.11

Finding the Fourth Proportional to 1,306.09, 1,962.96 and 1,088.11

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Solution

The fourth proportional to 1,306.09, 1,962.96 and 1,088.11 is: 1,635.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,306.09 : 1,962.96 = 1,088.11 : x
  2. Step 2: Convert to fraction form
    1,306.09/1,962.96 = 1,088.11/x
  3. Step 3: Cross multiply
    1,306.09x = 1,962.96 × 1,088.11
  4. Step 4: Simplify right side
    1,306.09x = 2,135,916.41
  5. Step 5: Solve for x
    x = 2,135,916.41/1,306.09
  6. Step 6: Final answer
    x = 1,635.35

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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.