Home / 2,931.99-4,395.25-1,082.60

Finding the Fourth Proportional to 2,931.99, 4,395.25 and 1,082.60

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Solution

The fourth proportional to 2,931.99, 4,395.25 and 1,082.60 is: 1,622.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,931.99 : 4,395.25 = 1,082.60 : x
  2. Step 2: Convert to fraction form
    2,931.99/4,395.25 = 1,082.60/x
  3. Step 3: Cross multiply
    2,931.99x = 4,395.25 × 1,082.60
  4. Step 4: Simplify right side
    2,931.99x = 4,758,312.14
  5. Step 5: Solve for x
    x = 4,758,312.14/2,931.99
  6. Step 6: Final answer
    x = 1,622.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.