Home / 1,541.14-2,312.12-445.59

Finding the Fourth Proportional to 1,541.14, 2,312.12 and 445.59

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Solution

The fourth proportional to 1,541.14, 2,312.12 and 445.59 is: 668.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,541.14 : 2,312.12 = 445.59 : x
  2. Step 2: Convert to fraction form
    1,541.14/2,312.12 = 445.59/x
  3. Step 3: Cross multiply
    1,541.14x = 2,312.12 × 445.59
  4. Step 4: Simplify right side
    1,541.14x = 1,030,258.66
  5. Step 5: Solve for x
    x = 1,030,258.66/1,541.14
  6. Step 6: Final answer
    x = 668.51

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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.