Home / 5,725.40-7,901.43-3,207.45

Finding the Fourth Proportional to 5,725.40, 7,901.43 and 3,207.45

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Solution

The fourth proportional to 5,725.40, 7,901.43 and 3,207.45 is: 4,426.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,725.40 : 7,901.43 = 3,207.45 : x
  2. Step 2: Convert to fraction form
    5,725.40/7,901.43 = 3,207.45/x
  3. Step 3: Cross multiply
    5,725.40x = 7,901.43 × 3,207.45
  4. Step 4: Simplify right side
    5,725.40x = 25,343,441.65
  5. Step 5: Solve for x
    x = 25,343,441.65/5,725.40
  6. Step 6: Final answer
    x = 4,426.50

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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.