Home / 7,032.87-9,705.42-3,889.26

Finding the Fourth Proportional to 7,032.87, 9,705.42 and 3,889.26

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Solution

The fourth proportional to 7,032.87, 9,705.42 and 3,889.26 is: 5,367.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,032.87 : 9,705.42 = 3,889.26 : x
  2. Step 2: Convert to fraction form
    7,032.87/9,705.42 = 3,889.26/x
  3. Step 3: Cross multiply
    7,032.87x = 9,705.42 × 3,889.26
  4. Step 4: Simplify right side
    7,032.87x = 37,746,901.79
  5. Step 5: Solve for x
    x = 37,746,901.79/7,032.87
  6. Step 6: Final answer
    x = 5,367.21

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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.