Home / 3,316.38-4,575.51-1,918.14

Finding the Fourth Proportional to 3,316.38, 4,575.51 and 1,918.14

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Solution

The fourth proportional to 3,316.38, 4,575.51 and 1,918.14 is: 2,646.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,316.38 : 4,575.51 = 1,918.14 : x
  2. Step 2: Convert to fraction form
    3,316.38/4,575.51 = 1,918.14/x
  3. Step 3: Cross multiply
    3,316.38x = 4,575.51 × 1,918.14
  4. Step 4: Simplify right side
    3,316.38x = 8,776,468.75
  5. Step 5: Solve for x
    x = 8,776,468.75/3,316.38
  6. Step 6: Final answer
    x = 2,646.40

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Double scale
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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.