Home / 3,099.53-4,279.01-2,389.81

Finding the Fourth Proportional to 3,099.53, 4,279.01 and 2,389.81

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Solution

The fourth proportional to 3,099.53, 4,279.01 and 2,389.81 is: 3,299.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,099.53 : 4,279.01 = 2,389.81 : x
  2. Step 2: Convert to fraction form
    3,099.53/4,279.01 = 2,389.81/x
  3. Step 3: Cross multiply
    3,099.53x = 4,279.01 × 2,389.81
  4. Step 4: Simplify right side
    3,099.53x = 10,226,032.21
  5. Step 5: Solve for x
    x = 10,226,032.21/3,099.53
  6. Step 6: Final answer
    x = 3,299.23

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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.