Home / 1,511.31-2,085.62-848.19

Finding the Fourth Proportional to 1,511.31, 2,085.62 and 848.19

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Solution

The fourth proportional to 1,511.31, 2,085.62 and 848.19 is: 1,170.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511.31 : 2,085.62 = 848.19 : x
  2. Step 2: Convert to fraction form
    1,511.31/2,085.62 = 848.19/x
  3. Step 3: Cross multiply
    1,511.31x = 2,085.62 × 848.19
  4. Step 4: Simplify right side
    1,511.31x = 1,768,997.79
  5. Step 5: Solve for x
    x = 1,768,997.79/1,511.31
  6. Step 6: Final answer
    x = 1,170.51

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Half scale
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Double scale
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Similar ratio
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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.