Home / 7,032.88-9,705.30-3,889.06

Finding the Fourth Proportional to 7,032.88, 9,705.30 and 3,889.06

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Solution

The fourth proportional to 7,032.88, 9,705.30 and 3,889.06 is: 5,366.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,032.88 : 9,705.30 = 3,889.06 : x
  2. Step 2: Convert to fraction form
    7,032.88/9,705.30 = 3,889.06/x
  3. Step 3: Cross multiply
    7,032.88x = 9,705.30 × 3,889.06
  4. Step 4: Simplify right side
    7,032.88x = 37,744,494.02
  5. Step 5: Solve for x
    x = 37,744,494.02/7,032.88
  6. Step 6: Final answer
    x = 5,366.86

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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.