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Finding the Fourth Proportional to 6,293.79, 8,685.65 and 3,605.49

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Solution

The fourth proportional to 6,293.79, 8,685.65 and 3,605.49 is: 4,975.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,293.79 : 8,685.65 = 3,605.49 : x
  2. Step 2: Convert to fraction form
    6,293.79/8,685.65 = 3,605.49/x
  3. Step 3: Cross multiply
    6,293.79x = 8,685.65 × 3,605.49
  4. Step 4: Simplify right side
    6,293.79x = 31,316,006.19
  5. Step 5: Solve for x
    x = 31,316,006.19/6,293.79
  6. Step 6: Final answer
    x = 4,975.70

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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.