Home / 5,137.59-7,089.87-2,779.74

Finding the Fourth Proportional to 5,137.59, 7,089.87 and 2,779.74

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Solution

The fourth proportional to 5,137.59, 7,089.87 and 2,779.74 is: 3,836.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,137.59 : 7,089.87 = 2,779.74 : x
  2. Step 2: Convert to fraction form
    5,137.59/7,089.87 = 2,779.74/x
  3. Step 3: Cross multiply
    5,137.59x = 7,089.87 × 2,779.74
  4. Step 4: Simplify right side
    5,137.59x = 19,707,995.23
  5. Step 5: Solve for x
    x = 19,707,995.23/5,137.59
  6. Step 6: Final answer
    x = 3,836.04

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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.