Home / 2,855.35-4,282.96-1,316.35

Finding the Fourth Proportional to 2,855.35, 4,282.96 and 1,316.35

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Solution

The fourth proportional to 2,855.35, 4,282.96 and 1,316.35 is: 1,974.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,855.35 : 4,282.96 = 1,316.35 : x
  2. Step 2: Convert to fraction form
    2,855.35/4,282.96 = 1,316.35/x
  3. Step 3: Cross multiply
    2,855.35x = 4,282.96 × 1,316.35
  4. Step 4: Simplify right side
    2,855.35x = 5,637,874.40
  5. Step 5: Solve for x
    x = 5,637,874.40/2,855.35
  6. Step 6: Final answer
    x = 1,974.50

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Half scale
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Double scale
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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.