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Finding the Fourth Proportional to 7,695.81, 10,619.10 and 4,338.77

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Solution

The fourth proportional to 7,695.81, 10,619.10 and 4,338.77 is: 5,986.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,695.81 : 10,619.10 = 4,338.77 : x
  2. Step 2: Convert to fraction form
    7,695.81/10,619.10 = 4,338.77/x
  3. Step 3: Cross multiply
    7,695.81x = 10,619.10 × 4,338.77
  4. Step 4: Simplify right side
    7,695.81x = 46,073,779.41
  5. Step 5: Solve for x
    x = 46,073,779.41/7,695.81
  6. Step 6: Final answer
    x = 5,986.87

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Double scale
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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.