Home / 1,621.23-2,237.17-957.96

Finding the Fourth Proportional to 1,621.23, 2,237.17 and 957.96

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Solution

The fourth proportional to 1,621.23, 2,237.17 and 957.96 is: 1,321.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,621.23 : 2,237.17 = 957.96 : x
  2. Step 2: Convert to fraction form
    1,621.23/2,237.17 = 957.96/x
  3. Step 3: Cross multiply
    1,621.23x = 2,237.17 × 957.96
  4. Step 4: Simplify right side
    1,621.23x = 2,143,111.39
  5. Step 5: Solve for x
    x = 2,143,111.39/1,621.23
  6. Step 6: Final answer
    x = 1,321.90

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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.