Home / 5,137.77-7,090.11-2,779.95

Finding the Fourth Proportional to 5,137.77, 7,090.11 and 2,779.95

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Solution

The fourth proportional to 5,137.77, 7,090.11 and 2,779.95 is: 3,836.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,137.77 : 7,090.11 = 2,779.95 : x
  2. Step 2: Convert to fraction form
    5,137.77/7,090.11 = 2,779.95/x
  3. Step 3: Cross multiply
    5,137.77x = 7,090.11 × 2,779.95
  4. Step 4: Simplify right side
    5,137.77x = 19,710,151.29
  5. Step 5: Solve for x
    x = 19,710,151.29/5,137.77
  6. Step 6: Final answer
    x = 3,836.32

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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.