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Finding the Fourth Proportional to 6,146.86, 9,219.17 and 1,643.98

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Solution

The fourth proportional to 6,146.86, 9,219.17 and 1,643.98 is: 2,465.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,146.86 : 9,219.17 = 1,643.98 : x
  2. Step 2: Convert to fraction form
    6,146.86/9,219.17 = 1,643.98/x
  3. Step 3: Cross multiply
    6,146.86x = 9,219.17 × 1,643.98
  4. Step 4: Simplify right side
    6,146.86x = 15,156,094.27
  5. Step 5: Solve for x
    x = 15,156,094.27/6,146.86
  6. Step 6: Final answer
    x = 2,465.66

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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.