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Finding the Fourth Proportional to 2,530.90, 3,795.88 and 681.58

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Solution

The fourth proportional to 2,530.90, 3,795.88 and 681.58 is: 1,022.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,530.90 : 3,795.88 = 681.58 : x
  2. Step 2: Convert to fraction form
    2,530.90/3,795.88 = 681.58/x
  3. Step 3: Cross multiply
    2,530.90x = 3,795.88 × 681.58
  4. Step 4: Simplify right side
    2,530.90x = 2,587,195.89
  5. Step 5: Solve for x
    x = 2,587,195.89/2,530.90
  6. Step 6: Final answer
    x = 1,022.24

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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.