Home / 1,621.02-2,236.68-957.94

Finding the Fourth Proportional to 1,621.02, 2,236.68 and 957.94

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Solution

The fourth proportional to 1,621.02, 2,236.68 and 957.94 is: 1,321.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,621.02 : 2,236.68 = 957.94 : x
  2. Step 2: Convert to fraction form
    1,621.02/2,236.68 = 957.94/x
  3. Step 3: Cross multiply
    1,621.02x = 2,236.68 × 957.94
  4. Step 4: Simplify right side
    1,621.02x = 2,142,605.24
  5. Step 5: Solve for x
    x = 2,142,605.24/1,621.02
  6. Step 6: Final answer
    x = 1,321.76

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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.