Home / 1,445.42-2,167.58-623.81

Finding the Fourth Proportional to 1,445.42, 2,167.58 and 623.81

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Solution

The fourth proportional to 1,445.42, 2,167.58 and 623.81 is: 935.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,445.42 : 2,167.58 = 623.81 : x
  2. Step 2: Convert to fraction form
    1,445.42/2,167.58 = 623.81/x
  3. Step 3: Cross multiply
    1,445.42x = 2,167.58 × 623.81
  4. Step 4: Simplify right side
    1,445.42x = 1,352,144.12
  5. Step 5: Solve for x
    x = 1,352,144.12/1,445.42
  6. Step 6: Final answer
    x = 935.47

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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.