Home / 4,685.80-7,039.58-2,936.20

Finding the Fourth Proportional to 4,685.80, 7,039.58 and 2,936.20

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Solution

The fourth proportional to 4,685.80, 7,039.58 and 2,936.20 is: 4,411.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,685.80 : 7,039.58 = 2,936.20 : x
  2. Step 2: Convert to fraction form
    4,685.80/7,039.58 = 2,936.20/x
  3. Step 3: Cross multiply
    4,685.80x = 7,039.58 × 2,936.20
  4. Step 4: Simplify right side
    4,685.80x = 20,669,614.80
  5. Step 5: Solve for x
    x = 20,669,614.80/4,685.80
  6. Step 6: Final answer
    x = 4,411.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.