Home / 4,740.52-7,112.12-1,621.20

Finding the Fourth Proportional to 4,740.52, 7,112.12 and 1,621.20

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Solution

The fourth proportional to 4,740.52, 7,112.12 and 1,621.20 is: 2,432.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,740.52 : 7,112.12 = 1,621.20 : x
  2. Step 2: Convert to fraction form
    4,740.52/7,112.12 = 1,621.20/x
  3. Step 3: Cross multiply
    4,740.52x = 7,112.12 × 1,621.20
  4. Step 4: Simplify right side
    4,740.52x = 11,530,168.94
  5. Step 5: Solve for x
    x = 11,530,168.94/4,740.52
  6. Step 6: Final answer
    x = 2,432.26

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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.