Home / 2,740.92-3,782.32-1,621.60

Finding the Fourth Proportional to 2,740.92, 3,782.32 and 1,621.60

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Solution

The fourth proportional to 2,740.92, 3,782.32 and 1,621.60 is: 2,237.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,740.92 : 3,782.32 = 1,621.60 : x
  2. Step 2: Convert to fraction form
    2,740.92/3,782.32 = 1,621.60/x
  3. Step 3: Cross multiply
    2,740.92x = 3,782.32 × 1,621.60
  4. Step 4: Simplify right side
    2,740.92x = 6,133,410.11
  5. Step 5: Solve for x
    x = 6,133,410.11/2,740.92
  6. Step 6: Final answer
    x = 2,237.72

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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.