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Finding the Fourth Proportional to 6,089.76, 8,405.67 and 3,572.40

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Solution

The fourth proportional to 6,089.76, 8,405.67 and 3,572.40 is: 4,930.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,089.76 : 8,405.67 = 3,572.40 : x
  2. Step 2: Convert to fraction form
    6,089.76/8,405.67 = 3,572.40/x
  3. Step 3: Cross multiply
    6,089.76x = 8,405.67 × 3,572.40
  4. Step 4: Simplify right side
    6,089.76x = 30,028,415.51
  5. Step 5: Solve for x
    x = 30,028,415.51/6,089.76
  6. Step 6: Final answer
    x = 4,930.97

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Half 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.