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Finding the Fourth Proportional to 5,690.60, 8,537.93 and 2,918.58

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Solution

The fourth proportional to 5,690.60, 8,537.93 and 2,918.58 is: 4,378.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,690.60 : 8,537.93 = 2,918.58 : x
  2. Step 2: Convert to fraction form
    5,690.60/8,537.93 = 2,918.58/x
  3. Step 3: Cross multiply
    5,690.60x = 8,537.93 × 2,918.58
  4. Step 4: Simplify right side
    5,690.60x = 24,918,631.74
  5. Step 5: Solve for x
    x = 24,918,631.74/5,690.60
  6. Step 6: Final answer
    x = 4,378.91

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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.