Home / 1,621.48-2,237.46-949.24

Finding the Fourth Proportional to 1,621.48, 2,237.46 and 949.24

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Solution

The fourth proportional to 1,621.48, 2,237.46 and 949.24 is: 1,309.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,621.48 : 2,237.46 = 949.24 : x
  2. Step 2: Convert to fraction form
    1,621.48/2,237.46 = 949.24/x
  3. Step 3: Cross multiply
    1,621.48x = 2,237.46 × 949.24
  4. Step 4: Simplify right side
    1,621.48x = 2,123,886.53
  5. Step 5: Solve for x
    x = 2,123,886.53/1,621.48
  6. Step 6: Final answer
    x = 1,309.84

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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.