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Finding the Fourth Proportional to 2,280.52, 3,420.76 and 741.52

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Solution

The fourth proportional to 2,280.52, 3,420.76 and 741.52 is: 1,112.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,280.52 : 3,420.76 = 741.52 : x
  2. Step 2: Convert to fraction form
    2,280.52/3,420.76 = 741.52/x
  3. Step 3: Cross multiply
    2,280.52x = 3,420.76 × 741.52
  4. Step 4: Simplify right side
    2,280.52x = 2,536,561.96
  5. Step 5: Solve for x
    x = 2,536,561.96/2,280.52
  6. Step 6: Final answer
    x = 1,112.27

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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.