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Finding the Fourth Proportional to 6,859.02, 10,263.02 and 4,087.20

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Solution

The fourth proportional to 6,859.02, 10,263.02 and 4,087.20 is: 6,115.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,859.02 : 10,263.02 = 4,087.20 : x
  2. Step 2: Convert to fraction form
    6,859.02/10,263.02 = 4,087.20/x
  3. Step 3: Cross multiply
    6,859.02x = 10,263.02 × 4,087.20
  4. Step 4: Simplify right side
    6,859.02x = 41,946,994.91
  5. Step 5: Solve for x
    x = 41,946,994.91/6,859.02
  6. Step 6: Final answer
    x = 6,115.60

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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.