Home / 1,621.22-2,237.38-922.60

Finding the Fourth Proportional to 1,621.22, 2,237.38 and 922.60

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Solution

The fourth proportional to 1,621.22, 2,237.38 and 922.60 is: 1,273.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,621.22 : 2,237.38 = 922.60 : x
  2. Step 2: Convert to fraction form
    1,621.22/2,237.38 = 922.60/x
  3. Step 3: Cross multiply
    1,621.22x = 2,237.38 × 922.60
  4. Step 4: Simplify right side
    1,621.22x = 2,064,206.79
  5. Step 5: Solve for x
    x = 2,064,206.79/1,621.22
  6. Step 6: Final answer
    x = 1,273.24

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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.