Home / 6,611.47-9,123.75-3,779.99

Finding the Fourth Proportional to 6,611.47, 9,123.75 and 3,779.99

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Solution

The fourth proportional to 6,611.47, 9,123.75 and 3,779.99 is: 5,216.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,611.47 : 9,123.75 = 3,779.99 : x
  2. Step 2: Convert to fraction form
    6,611.47/9,123.75 = 3,779.99/x
  3. Step 3: Cross multiply
    6,611.47x = 9,123.75 × 3,779.99
  4. Step 4: Simplify right side
    6,611.47x = 34,487,619.24
  5. Step 5: Solve for x
    x = 34,487,619.24/6,611.47
  6. Step 6: Final answer
    x = 5,216.34

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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.