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Finding the Fourth Proportional to 6,437.78, 8,884.16 and 3,605.16

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Solution

The fourth proportional to 6,437.78, 8,884.16 and 3,605.16 is: 4,975.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,437.78 : 8,884.16 = 3,605.16 : x
  2. Step 2: Convert to fraction form
    6,437.78/8,884.16 = 3,605.16/x
  3. Step 3: Cross multiply
    6,437.78x = 8,884.16 × 3,605.16
  4. Step 4: Simplify right side
    6,437.78x = 32,028,818.27
  5. Step 5: Solve for x
    x = 32,028,818.27/6,437.78
  6. Step 6: Final answer
    x = 4,975.13

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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.