Home / 6,478.02-9,715.43-2,779.83

Finding the Fourth Proportional to 6,478.02, 9,715.43 and 2,779.83

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Solution

The fourth proportional to 6,478.02, 9,715.43 and 2,779.83 is: 4,169.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,478.02 : 9,715.43 = 2,779.83 : x
  2. Step 2: Convert to fraction form
    6,478.02/9,715.43 = 2,779.83/x
  3. Step 3: Cross multiply
    6,478.02x = 9,715.43 × 2,779.83
  4. Step 4: Simplify right side
    6,478.02x = 27,007,229.88
  5. Step 5: Solve for x
    x = 27,007,229.88/6,478.02
  6. Step 6: Final answer
    x = 4,169.06

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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.