Home / 1,621.11-2,236.36-1,061.34

Finding the Fourth Proportional to 1,621.11, 2,236.36 and 1,061.34

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Solution

The fourth proportional to 1,621.11, 2,236.36 and 1,061.34 is: 1,464.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,621.11 : 2,236.36 = 1,061.34 : x
  2. Step 2: Convert to fraction form
    1,621.11/2,236.36 = 1,061.34/x
  3. Step 3: Cross multiply
    1,621.11x = 2,236.36 × 1,061.34
  4. Step 4: Simplify right side
    1,621.11x = 2,373,529.27
  5. Step 5: Solve for x
    x = 2,373,529.27/1,621.11
  6. Step 6: Final answer
    x = 1,464.13

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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.