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Finding the Fourth Proportional to 3,068.72, 4,603.08 and 760.22

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Solution

The fourth proportional to 3,068.72, 4,603.08 and 760.22 is: 1,140.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,068.72 : 4,603.08 = 760.22 : x
  2. Step 2: Convert to fraction form
    3,068.72/4,603.08 = 760.22/x
  3. Step 3: Cross multiply
    3,068.72x = 4,603.08 × 760.22
  4. Step 4: Simplify right side
    3,068.72x = 3,499,346.30
  5. Step 5: Solve for x
    x = 3,499,346.30/3,068.72
  6. Step 6: Final answer
    x = 1,140.33

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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.