Home / 3,715.05-5,130.24-2,391.05

Finding the Fourth Proportional to 3,715.05, 5,130.24 and 2,391.05

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Solution

The fourth proportional to 3,715.05, 5,130.24 and 2,391.05 is: 3,301.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,715.05 : 5,130.24 = 2,391.05 : x
  2. Step 2: Convert to fraction form
    3,715.05/5,130.24 = 2,391.05/x
  3. Step 3: Cross multiply
    3,715.05x = 5,130.24 × 2,391.05
  4. Step 4: Simplify right side
    3,715.05x = 12,266,664.21
  5. Step 5: Solve for x
    x = 12,266,664.21/3,715.05
  6. Step 6: Final answer
    x = 3,301.89

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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.