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Finding the Fourth Proportional to 7,329.64, 10,114.86 and 4,185.64

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Solution

The fourth proportional to 7,329.64, 10,114.86 and 4,185.64 is: 5,776.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,329.64 : 10,114.86 = 4,185.64 : x
  2. Step 2: Convert to fraction form
    7,329.64/10,114.86 = 4,185.64/x
  3. Step 3: Cross multiply
    7,329.64x = 10,114.86 × 4,185.64
  4. Step 4: Simplify right side
    7,329.64x = 42,337,162.61
  5. Step 5: Solve for x
    x = 42,337,162.61/7,329.64
  6. Step 6: Final answer
    x = 5,776.16

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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.