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Finding the Fourth Proportional to 5,326.78, 7,993.77 and 1,864.06

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Solution

The fourth proportional to 5,326.78, 7,993.77 and 1,864.06 is: 2,797.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,326.78 : 7,993.77 = 1,864.06 : x
  2. Step 2: Convert to fraction form
    5,326.78/7,993.77 = 1,864.06/x
  3. Step 3: Cross multiply
    5,326.78x = 7,993.77 × 1,864.06
  4. Step 4: Simplify right side
    5,326.78x = 14,900,866.91
  5. Step 5: Solve for x
    x = 14,900,866.91/5,326.78
  6. Step 6: Final answer
    x = 2,797.35

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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.