Home / 5,137.32-7,089.46-2,779.41

Finding the Fourth Proportional to 5,137.32, 7,089.46 and 2,779.41

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Solution

The fourth proportional to 5,137.32, 7,089.46 and 2,779.41 is: 3,835.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,137.32 : 7,089.46 = 2,779.41 : x
  2. Step 2: Convert to fraction form
    5,137.32/7,089.46 = 2,779.41/x
  3. Step 3: Cross multiply
    5,137.32x = 7,089.46 × 2,779.41
  4. Step 4: Simplify right side
    5,137.32x = 19,704,516.02
  5. Step 5: Solve for x
    x = 19,704,516.02/5,137.32
  6. Step 6: Final answer
    x = 3,835.56

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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.