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Finding the Fourth Proportional to 3,643.61, 5,464.31 and 1,010.48

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Solution

The fourth proportional to 3,643.61, 5,464.31 and 1,010.48 is: 1,515.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,643.61 : 5,464.31 = 1,010.48 : x
  2. Step 2: Convert to fraction form
    3,643.61/5,464.31 = 1,010.48/x
  3. Step 3: Cross multiply
    3,643.61x = 5,464.31 × 1,010.48
  4. Step 4: Simplify right side
    3,643.61x = 5,521,592.16
  5. Step 5: Solve for x
    x = 5,521,592.16/3,643.61
  6. Step 6: Final answer
    x = 1,515.42

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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.