Home / 1,621.80-2,236.28-1,062.23

Finding the Fourth Proportional to 1,621.80, 2,236.28 and 1,062.23

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Solution

The fourth proportional to 1,621.80, 2,236.28 and 1,062.23 is: 1,464.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,621.80 : 2,236.28 = 1,062.23 : x
  2. Step 2: Convert to fraction form
    1,621.80/2,236.28 = 1,062.23/x
  3. Step 3: Cross multiply
    1,621.80x = 2,236.28 × 1,062.23
  4. Step 4: Simplify right side
    1,621.80x = 2,375,427.21
  5. Step 5: Solve for x
    x = 2,375,427.21/1,621.80
  6. Step 6: Final answer
    x = 1,464.69

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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.