Home / 3,810.60-5,713.47-1,618.20

Finding the Fourth Proportional to 3,810.60, 5,713.47 and 1,618.20

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Solution

The fourth proportional to 3,810.60, 5,713.47 and 1,618.20 is: 2,426.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,810.60 : 5,713.47 = 1,618.20 : x
  2. Step 2: Convert to fraction form
    3,810.60/5,713.47 = 1,618.20/x
  3. Step 3: Cross multiply
    3,810.60x = 5,713.47 × 1,618.20
  4. Step 4: Simplify right side
    3,810.60x = 9,245,537.15
  5. Step 5: Solve for x
    x = 9,245,537.15/3,810.60
  6. Step 6: Final answer
    x = 2,426.27

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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.