Home / 1,148.34-1,730.96-1,081.44

Finding the Fourth Proportional to 1,148.34, 1,730.96 and 1,081.44

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Solution

The fourth proportional to 1,148.34, 1,730.96 and 1,081.44 is: 1,630.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,148.34 : 1,730.96 = 1,081.44 : x
  2. Step 2: Convert to fraction form
    1,148.34/1,730.96 = 1,081.44/x
  3. Step 3: Cross multiply
    1,148.34x = 1,730.96 × 1,081.44
  4. Step 4: Simplify right side
    1,148.34x = 1,871,929.38
  5. Step 5: Solve for x
    x = 1,871,929.38/1,148.34
  6. Step 6: Final answer
    x = 1,630.12

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.