Home / 7,158.83-10,731.69-2,779.56

Finding the Fourth Proportional to 7,158.83, 10,731.69 and 2,779.56

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Solution

The fourth proportional to 7,158.83, 10,731.69 and 2,779.56 is: 4,166.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,158.83 : 10,731.69 = 2,779.56 : x
  2. Step 2: Convert to fraction form
    7,158.83/10,731.69 = 2,779.56/x
  3. Step 3: Cross multiply
    7,158.83x = 10,731.69 × 2,779.56
  4. Step 4: Simplify right side
    7,158.83x = 29,829,376.26
  5. Step 5: Solve for x
    x = 29,829,376.26/7,158.83
  6. Step 6: Final answer
    x = 4,166.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.