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Finding the Fourth Proportional to 6,510.64, 9,767.40 and 1,894

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Solution

The fourth proportional to 6,510.64, 9,767.40 and 1,894 is: 2,841.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,510.64 : 9,767.40 = 1,894 : x
  2. Step 2: Convert to fraction form
    6,510.64/9,767.40 = 1,894/x
  3. Step 3: Cross multiply
    6,510.64x = 9,767.40 × 1,894
  4. Step 4: Simplify right side
    6,510.64x = 18,499,455.60
  5. Step 5: Solve for x
    x = 18,499,455.60/6,510.64
  6. Step 6: Final answer
    x = 2,841.42

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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.