Home / 2,812,120.80-3,880,707.20-1,522,931.68

Finding the Fourth Proportional to 2,812,120.80, 3,880,707.20 and 1,522,931.68

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Solution

The fourth proportional to 2,812,120.80, 3,880,707.20 and 1,522,931.68 is: 2,101,635.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,812,120.80 : 3,880,707.20 = 1,522,931.68 : x
  2. Step 2: Convert to fraction form
    2,812,120.80/3,880,707.20 = 1,522,931.68/x
  3. Step 3: Cross multiply
    2,812,120.80x = 3,880,707.20 × 1,522,931.68
  4. Step 4: Simplify right side
    2,812,120.80x = 5,910,051,935,684.10
  5. Step 5: Solve for x
    x = 5,910,051,935,684.10/2,812,120.80
  6. Step 6: Final answer
    x = 2,101,635.16

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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.