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Finding the Fourth Proportional to 6,159.78, 8,501.21 and 3,507.62

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Solution

The fourth proportional to 6,159.78, 8,501.21 and 3,507.62 is: 4,840.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,159.78 : 8,501.21 = 3,507.62 : x
  2. Step 2: Convert to fraction form
    6,159.78/8,501.21 = 3,507.62/x
  3. Step 3: Cross multiply
    6,159.78x = 8,501.21 × 3,507.62
  4. Step 4: Simplify right side
    6,159.78x = 29,818,954.18
  5. Step 5: Solve for x
    x = 29,818,954.18/6,159.78
  6. Step 6: Final answer
    x = 4,840.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.