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Finding the Fourth Proportional to 4,139.66, 6,210.11 and 1,366.63

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Solution

The fourth proportional to 4,139.66, 6,210.11 and 1,366.63 is: 2,050.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,139.66 : 6,210.11 = 1,366.63 : x
  2. Step 2: Convert to fraction form
    4,139.66/6,210.11 = 1,366.63/x
  3. Step 3: Cross multiply
    4,139.66x = 6,210.11 × 1,366.63
  4. Step 4: Simplify right side
    4,139.66x = 8,486,905.40
  5. Step 5: Solve for x
    x = 8,486,905.40/4,139.66
  6. Step 6: Final answer
    x = 2,050.14

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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.