Home / 4,775.10-7,130.50-3,899.32

Finding the Fourth Proportional to 4,775.10, 7,130.50 and 3,899.32

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Solution

The fourth proportional to 4,775.10, 7,130.50 and 3,899.32 is: 5,822.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,775.10 : 7,130.50 = 3,899.32 : x
  2. Step 2: Convert to fraction form
    4,775.10/7,130.50 = 3,899.32/x
  3. Step 3: Cross multiply
    4,775.10x = 7,130.50 × 3,899.32
  4. Step 4: Simplify right side
    4,775.10x = 27,804,101.26
  5. Step 5: Solve for x
    x = 27,804,101.26/4,775.10
  6. Step 6: Final answer
    x = 5,822.73

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.