Home / 1,354.86-2,031.57-623.81

Finding the Fourth Proportional to 1,354.86, 2,031.57 and 623.81

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Solution

The fourth proportional to 1,354.86, 2,031.57 and 623.81 is: 935.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,354.86 : 2,031.57 = 623.81 : x
  2. Step 2: Convert to fraction form
    1,354.86/2,031.57 = 623.81/x
  3. Step 3: Cross multiply
    1,354.86x = 2,031.57 × 623.81
  4. Step 4: Simplify right side
    1,354.86x = 1,267,318.76
  5. Step 5: Solve for x
    x = 1,267,318.76/1,354.86
  6. Step 6: Final answer
    x = 935.39

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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.