Home / 1,051.27-1,450.67-609.21

Finding the Fourth Proportional to 1,051.27, 1,450.67 and 609.21

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Solution

The fourth proportional to 1,051.27, 1,450.67 and 609.21 is: 840.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,051.27 : 1,450.67 = 609.21 : x
  2. Step 2: Convert to fraction form
    1,051.27/1,450.67 = 609.21/x
  3. Step 3: Cross multiply
    1,051.27x = 1,450.67 × 609.21
  4. Step 4: Simplify right side
    1,051.27x = 883,762.67
  5. Step 5: Solve for x
    x = 883,762.67/1,051.27
  6. Step 6: Final answer
    x = 840.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.