Home / 4,258.31-6,388.61-1,485.14

Finding the Fourth Proportional to 4,258.31, 6,388.61 and 1,485.14

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Solution

The fourth proportional to 4,258.31, 6,388.61 and 1,485.14 is: 2,228.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,258.31 : 6,388.61 = 1,485.14 : x
  2. Step 2: Convert to fraction form
    4,258.31/6,388.61 = 1,485.14/x
  3. Step 3: Cross multiply
    4,258.31x = 6,388.61 × 1,485.14
  4. Step 4: Simplify right side
    4,258.31x = 9,487,940.89
  5. Step 5: Solve for x
    x = 9,487,940.89/4,258.31
  6. Step 6: Final answer
    x = 2,228.10

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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.