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Finding the Fourth Proportional to 3,051.32, 4,576.95 and 860.03

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Solution

The fourth proportional to 3,051.32, 4,576.95 and 860.03 is: 1,290.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,051.32 : 4,576.95 = 860.03 : x
  2. Step 2: Convert to fraction form
    3,051.32/4,576.95 = 860.03/x
  3. Step 3: Cross multiply
    3,051.32x = 4,576.95 × 860.03
  4. Step 4: Simplify right side
    3,051.32x = 3,936,308.59
  5. Step 5: Solve for x
    x = 3,936,308.59/3,051.32
  6. Step 6: Final answer
    x = 1,290.04

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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.