Home / 1,051.06-1,450.50-631.48

Finding the Fourth Proportional to 1,051.06, 1,450.50 and 631.48

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Solution

The fourth proportional to 1,051.06, 1,450.50 and 631.48 is: 871.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,051.06 : 1,450.50 = 631.48 : x
  2. Step 2: Convert to fraction form
    1,051.06/1,450.50 = 631.48/x
  3. Step 3: Cross multiply
    1,051.06x = 1,450.50 × 631.48
  4. Step 4: Simplify right side
    1,051.06x = 915,961.74
  5. Step 5: Solve for x
    x = 915,961.74/1,051.06
  6. Step 6: Final answer
    x = 871.46

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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.