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Finding the Fourth Proportional to 5,671.31, 8,506.98 and 3,090.65

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Solution

The fourth proportional to 5,671.31, 8,506.98 and 3,090.65 is: 4,635.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,671.31 : 8,506.98 = 3,090.65 : x
  2. Step 2: Convert to fraction form
    5,671.31/8,506.98 = 3,090.65/x
  3. Step 3: Cross multiply
    5,671.31x = 8,506.98 × 3,090.65
  4. Step 4: Simplify right side
    5,671.31x = 26,292,097.74
  5. Step 5: Solve for x
    x = 26,292,097.74/5,671.31
  6. Step 6: Final answer
    x = 4,635.98

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.