Home / 4,895.80-7,343.70-2,815.80

Finding the Fourth Proportional to 4,895.80, 7,343.70 and 2,815.80

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Solution

The fourth proportional to 4,895.80, 7,343.70 and 2,815.80 is: 4,223.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,895.80 : 7,343.70 = 2,815.80 : x
  2. Step 2: Convert to fraction form
    4,895.80/7,343.70 = 2,815.80/x
  3. Step 3: Cross multiply
    4,895.80x = 7,343.70 × 2,815.80
  4. Step 4: Simplify right side
    4,895.80x = 20,678,390.46
  5. Step 5: Solve for x
    x = 20,678,390.46/4,895.80
  6. Step 6: Final answer
    x = 4,223.70

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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.