Home / 1,576.10-2,364.11-421.94

Finding the Fourth Proportional to 1,576.10, 2,364.11 and 421.94

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Solution

The fourth proportional to 1,576.10, 2,364.11 and 421.94 is: 632.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,576.10 : 2,364.11 = 421.94 : x
  2. Step 2: Convert to fraction form
    1,576.10/2,364.11 = 421.94/x
  3. Step 3: Cross multiply
    1,576.10x = 2,364.11 × 421.94
  4. Step 4: Simplify right side
    1,576.10x = 997,512.57
  5. Step 5: Solve for x
    x = 997,512.57/1,576.10
  6. Step 6: Final answer
    x = 632.90

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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.