Home / 2,316.12-3,486.69-2,115.24

Finding the Fourth Proportional to 2,316.12, 3,486.69 and 2,115.24

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Solution

The fourth proportional to 2,316.12, 3,486.69 and 2,115.24 is: 3,184.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,316.12 : 3,486.69 = 2,115.24 : x
  2. Step 2: Convert to fraction form
    2,316.12/3,486.69 = 2,115.24/x
  3. Step 3: Cross multiply
    2,316.12x = 3,486.69 × 2,115.24
  4. Step 4: Simplify right side
    2,316.12x = 7,375,186.16
  5. Step 5: Solve for x
    x = 7,375,186.16/2,316.12
  6. Step 6: Final answer
    x = 3,184.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.