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Finding the Fourth Proportional to 4,643.09, 6,965.81 and 1,356.20

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Solution

The fourth proportional to 4,643.09, 6,965.81 and 1,356.20 is: 2,034.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,643.09 : 6,965.81 = 1,356.20 : x
  2. Step 2: Convert to fraction form
    4,643.09/6,965.81 = 1,356.20/x
  3. Step 3: Cross multiply
    4,643.09x = 6,965.81 × 1,356.20
  4. Step 4: Simplify right side
    4,643.09x = 9,447,031.52
  5. Step 5: Solve for x
    x = 9,447,031.52/4,643.09
  6. Step 6: Final answer
    x = 2,034.64

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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.