Home / 2,812.04-3,875.46-2,636.68

Finding the Fourth Proportional to 2,812.04, 3,875.46 and 2,636.68

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Solution

The fourth proportional to 2,812.04, 3,875.46 and 2,636.68 is: 3,633.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,812.04 : 3,875.46 = 2,636.68 : x
  2. Step 2: Convert to fraction form
    2,812.04/3,875.46 = 2,636.68/x
  3. Step 3: Cross multiply
    2,812.04x = 3,875.46 × 2,636.68
  4. Step 4: Simplify right side
    2,812.04x = 10,218,347.87
  5. Step 5: Solve for x
    x = 10,218,347.87/2,812.04
  6. Step 6: Final answer
    x = 3,633.78

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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.