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Finding the Fourth Proportional to 4,180.60, 6,270.90 and 1,258.90

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Solution

The fourth proportional to 4,180.60, 6,270.90 and 1,258.90 is: 1,888.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,180.60 : 6,270.90 = 1,258.90 : x
  2. Step 2: Convert to fraction form
    4,180.60/6,270.90 = 1,258.90/x
  3. Step 3: Cross multiply
    4,180.60x = 6,270.90 × 1,258.90
  4. Step 4: Simplify right side
    4,180.60x = 7,894,436.01
  5. Step 5: Solve for x
    x = 7,894,436.01/4,180.60
  6. Step 6: Final answer
    x = 1,888.35

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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.