Home / 1,621.37-2,236.58-1,062.74

Finding the Fourth Proportional to 1,621.37, 2,236.58 and 1,062.74

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Solution

The fourth proportional to 1,621.37, 2,236.58 and 1,062.74 is: 1,465.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,621.37 : 2,236.58 = 1,062.74 : x
  2. Step 2: Convert to fraction form
    1,621.37/2,236.58 = 1,062.74/x
  3. Step 3: Cross multiply
    1,621.37x = 2,236.58 × 1,062.74
  4. Step 4: Simplify right side
    1,621.37x = 2,376,891.85
  5. Step 5: Solve for x
    x = 2,376,891.85/1,621.37
  6. Step 6: Final answer
    x = 1,465.98

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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.