Home / 3,186.45-4,386.87-2,513.03

Finding the Fourth Proportional to 3,186.45, 4,386.87 and 2,513.03

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Solution

The fourth proportional to 3,186.45, 4,386.87 and 2,513.03 is: 3,459.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,186.45 : 4,386.87 = 2,513.03 : x
  2. Step 2: Convert to fraction form
    3,186.45/4,386.87 = 2,513.03/x
  3. Step 3: Cross multiply
    3,186.45x = 4,386.87 × 2,513.03
  4. Step 4: Simplify right side
    3,186.45x = 11,024,313.98
  5. Step 5: Solve for x
    x = 11,024,313.98/3,186.45
  6. Step 6: Final answer
    x = 3,459.75

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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.