Home / 1,541.41-2,312.55-445.87

Finding the Fourth Proportional to 1,541.41, 2,312.55 and 445.87

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Solution

The fourth proportional to 1,541.41, 2,312.55 and 445.87 is: 668.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,541.41 : 2,312.55 = 445.87 : x
  2. Step 2: Convert to fraction form
    1,541.41/2,312.55 = 445.87/x
  3. Step 3: Cross multiply
    1,541.41x = 2,312.55 × 445.87
  4. Step 4: Simplify right side
    1,541.41x = 1,031,096.67
  5. Step 5: Solve for x
    x = 1,031,096.67/1,541.41
  6. Step 6: Final answer
    x = 668.93

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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.