Home / 6,429.92-8,875.00-3,779.09

Finding the Fourth Proportional to 6,429.92, 8,875.00 and 3,779.09

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Solution

The fourth proportional to 6,429.92, 8,875.00 and 3,779.09 is: 5,216.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,429.92 : 8,875.00 = 3,779.09 : x
  2. Step 2: Convert to fraction form
    6,429.92/8,875.00 = 3,779.09/x
  3. Step 3: Cross multiply
    6,429.92x = 8,875.00 × 3,779.09
  4. Step 4: Simplify right side
    6,429.92x = 33,539,417.38
  5. Step 5: Solve for x
    x = 33,539,417.38/6,429.92
  6. Step 6: Final answer
    x = 5,216.15

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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.