Home / 6,258.45-8,638.47-4,135.53

Finding the Fourth Proportional to 6,258.45, 8,638.47 and 4,135.53

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Solution

The fourth proportional to 6,258.45, 8,638.47 and 4,135.53 is: 5,708.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,258.45 : 8,638.47 = 4,135.53 : x
  2. Step 2: Convert to fraction form
    6,258.45/8,638.47 = 4,135.53/x
  3. Step 3: Cross multiply
    6,258.45x = 8,638.47 × 4,135.53
  4. Step 4: Simplify right side
    6,258.45x = 35,724,651.84
  5. Step 5: Solve for x
    x = 35,724,651.84/6,258.45
  6. Step 6: Final answer
    x = 5,708.23

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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.