Home / 1,298.05-1,947.11-324.16

Finding the Fourth Proportional to 1,298.05, 1,947.11 and 324.16

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Solution

The fourth proportional to 1,298.05, 1,947.11 and 324.16 is: 486.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298.05 : 1,947.11 = 324.16 : x
  2. Step 2: Convert to fraction form
    1,298.05/1,947.11 = 324.16/x
  3. Step 3: Cross multiply
    1,298.05x = 1,947.11 × 324.16
  4. Step 4: Simplify right side
    1,298.05x = 631,168.69
  5. Step 5: Solve for x
    x = 631,168.69/1,298.05
  6. Step 6: Final answer
    x = 486.24

Related Problems

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.