Home / 1,248.10-1,872.14-336.10

Finding the Fourth Proportional to 1,248.10, 1,872.14 and 336.10

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Solution

The fourth proportional to 1,248.10, 1,872.14 and 336.10 is: 504.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,248.10 : 1,872.14 = 336.10 : x
  2. Step 2: Convert to fraction form
    1,248.10/1,872.14 = 336.10/x
  3. Step 3: Cross multiply
    1,248.10x = 1,872.14 × 336.10
  4. Step 4: Simplify right side
    1,248.10x = 629,226.25
  5. Step 5: Solve for x
    x = 629,226.25/1,248.10
  6. Step 6: Final answer
    x = 504.15

Related Problems

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Half scale
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Double scale
Find fourth proportional to 1,249.10, 1,873.64 and 337.10
Similar ratio
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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.