Home / 2,319.92-3,200.52-1,621.70

Finding the Fourth Proportional to 2,319.92, 3,200.52 and 1,621.70

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Solution

The fourth proportional to 2,319.92, 3,200.52 and 1,621.70 is: 2,237.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,319.92 : 3,200.52 = 1,621.70 : x
  2. Step 2: Convert to fraction form
    2,319.92/3,200.52 = 1,621.70/x
  3. Step 3: Cross multiply
    2,319.92x = 3,200.52 × 1,621.70
  4. Step 4: Simplify right side
    2,319.92x = 5,190,283.28
  5. Step 5: Solve for x
    x = 5,190,283.28/2,319.92
  6. Step 6: Final answer
    x = 2,237.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.