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Finding the Fourth Proportional to 6,230.40, 8,597.76 and 4,138.32

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Solution

The fourth proportional to 6,230.40, 8,597.76 and 4,138.32 is: 5,710.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,230.40 : 8,597.76 = 4,138.32 : x
  2. Step 2: Convert to fraction form
    6,230.40/8,597.76 = 4,138.32/x
  3. Step 3: Cross multiply
    6,230.40x = 8,597.76 × 4,138.32
  4. Step 4: Simplify right side
    6,230.40x = 35,580,282.16
  5. Step 5: Solve for x
    x = 35,580,282.16/6,230.40
  6. Step 6: Final answer
    x = 5,710.75

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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.