Home / 1,148.39-1,582.44-1,086.36

Finding the Fourth Proportional to 1,148.39, 1,582.44 and 1,086.36

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Solution

The fourth proportional to 1,148.39, 1,582.44 and 1,086.36 is: 1,496.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,148.39 : 1,582.44 = 1,086.36 : x
  2. Step 2: Convert to fraction form
    1,148.39/1,582.44 = 1,086.36/x
  3. Step 3: Cross multiply
    1,148.39x = 1,582.44 × 1,086.36
  4. Step 4: Simplify right side
    1,148.39x = 1,719,101.38
  5. Step 5: Solve for x
    x = 1,719,101.38/1,148.39
  6. Step 6: Final answer
    x = 1,496.96

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1.5x scale

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.