Home / 1,541.21-2,316.68-1,338.30

Finding the Fourth Proportional to 1,541.21, 2,316.68 and 1,338.30

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Solution

The fourth proportional to 1,541.21, 2,316.68 and 1,338.30 is: 2,011.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,541.21 : 2,316.68 = 1,338.30 : x
  2. Step 2: Convert to fraction form
    1,541.21/2,316.68 = 1,338.30/x
  3. Step 3: Cross multiply
    1,541.21x = 2,316.68 × 1,338.30
  4. Step 4: Simplify right side
    1,541.21x = 3,100,406.15
  5. Step 5: Solve for x
    x = 3,100,406.15/1,541.21
  6. Step 6: Final answer
    x = 2,011.68

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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.