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Finding the Fourth Proportional to 4,078, 6,117.06 and 1,000

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Solution

The fourth proportional to 4,078, 6,117.06 and 1,000 is: 1,500.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,078 : 6,117.06 = 1,000 : x
  2. Step 2: Convert to fraction form
    4,078/6,117.06 = 1,000/x
  3. Step 3: Cross multiply
    4,078x = 6,117.06 × 1,000
  4. Step 4: Simplify right side
    4,078x = 6,117,060
  5. Step 5: Solve for x
    x = 6,117,060/4,078
  6. Step 6: Final answer
    x = 1,500.01

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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.