Home / 3,810.39-5,258.51-2,318.05

Finding the Fourth Proportional to 3,810.39, 5,258.51 and 2,318.05

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Solution

The fourth proportional to 3,810.39, 5,258.51 and 2,318.05 is: 3,199.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,810.39 : 5,258.51 = 2,318.05 : x
  2. Step 2: Convert to fraction form
    3,810.39/5,258.51 = 2,318.05/x
  3. Step 3: Cross multiply
    3,810.39x = 5,258.51 × 2,318.05
  4. Step 4: Simplify right side
    3,810.39x = 12,189,489.11
  5. Step 5: Solve for x
    x = 12,189,489.11/3,810.39
  6. Step 6: Final answer
    x = 3,199.01

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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.