Home / 1,812.60-2,697.24-1,806.45

Finding the Fourth Proportional to 1,812.60, 2,697.24 and 1,806.45

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Solution

The fourth proportional to 1,812.60, 2,697.24 and 1,806.45 is: 2,688.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,812.60 : 2,697.24 = 1,806.45 : x
  2. Step 2: Convert to fraction form
    1,812.60/2,697.24 = 1,806.45/x
  3. Step 3: Cross multiply
    1,812.60x = 2,697.24 × 1,806.45
  4. Step 4: Simplify right side
    1,812.60x = 4,872,429.20
  5. Step 5: Solve for x
    x = 4,872,429.20/1,812.60
  6. Step 6: Final answer
    x = 2,688.09

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.