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Finding the Fourth Proportional to 4,485.66, 6,191.43 and 2,913.66

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Solution

The fourth proportional to 4,485.66, 6,191.43 and 2,913.66 is: 4,021.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,485.66 : 6,191.43 = 2,913.66 : x
  2. Step 2: Convert to fraction form
    4,485.66/6,191.43 = 2,913.66/x
  3. Step 3: Cross multiply
    4,485.66x = 6,191.43 × 2,913.66
  4. Step 4: Simplify right side
    4,485.66x = 18,039,721.93
  5. Step 5: Solve for x
    x = 18,039,721.93/4,485.66
  6. Step 6: Final answer
    x = 4,021.64

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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.