Home / 4,258.49-6,387.25-1,138.74

Finding the Fourth Proportional to 4,258.49, 6,387.25 and 1,138.74

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Solution

The fourth proportional to 4,258.49, 6,387.25 and 1,138.74 is: 1,707.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,258.49 : 6,387.25 = 1,138.74 : x
  2. Step 2: Convert to fraction form
    4,258.49/6,387.25 = 1,138.74/x
  3. Step 3: Cross multiply
    4,258.49x = 6,387.25 × 1,138.74
  4. Step 4: Simplify right side
    4,258.49x = 7,273,392.38
  5. Step 5: Solve for x
    x = 7,273,392.38/4,258.49
  6. Step 6: Final answer
    x = 1,707.98

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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.