Home / 1,481.10-2,221.35-701.10

Finding the Fourth Proportional to 1,481.10, 2,221.35 and 701.10

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Solution

The fourth proportional to 1,481.10, 2,221.35 and 701.10 is: 1,051.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,481.10 : 2,221.35 = 701.10 : x
  2. Step 2: Convert to fraction form
    1,481.10/2,221.35 = 701.10/x
  3. Step 3: Cross multiply
    1,481.10x = 2,221.35 × 701.10
  4. Step 4: Simplify right side
    1,481.10x = 1,557,388.49
  5. Step 5: Solve for x
    x = 1,557,388.49/1,481.10
  6. Step 6: Final answer
    x = 1,051.51

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Half scale
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Double scale
Find fourth proportional to 1,482.10, 2,222.85 and 702.10
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1.5x scale

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.