Home / 3,513.40-5,263.70-2,860.60

Finding the Fourth Proportional to 3,513.40, 5,263.70 and 2,860.60

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Solution

The fourth proportional to 3,513.40, 5,263.70 and 2,860.60 is: 4,285.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,513.40 : 5,263.70 = 2,860.60 : x
  2. Step 2: Convert to fraction form
    3,513.40/5,263.70 = 2,860.60/x
  3. Step 3: Cross multiply
    3,513.40x = 5,263.70 × 2,860.60
  4. Step 4: Simplify right side
    3,513.40x = 15,057,340.22
  5. Step 5: Solve for x
    x = 15,057,340.22/3,513.40
  6. Step 6: Final answer
    x = 4,285.69

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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.