Home / 3,851.45-5,316.31-2,258.60

Finding the Fourth Proportional to 3,851.45, 5,316.31 and 2,258.60

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Solution

The fourth proportional to 3,851.45, 5,316.31 and 2,258.60 is: 3,117.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,851.45 : 5,316.31 = 2,258.60 : x
  2. Step 2: Convert to fraction form
    3,851.45/5,316.31 = 2,258.60/x
  3. Step 3: Cross multiply
    3,851.45x = 5,316.31 × 2,258.60
  4. Step 4: Simplify right side
    3,851.45x = 12,007,417.77
  5. Step 5: Solve for x
    x = 12,007,417.77/3,851.45
  6. Step 6: Final answer
    x = 3,117.64

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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.