Home / 1,050.90-1,450.26-631.19

Finding the Fourth Proportional to 1,050.90, 1,450.26 and 631.19

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Solution

The fourth proportional to 1,050.90, 1,450.26 and 631.19 is: 871.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,050.90 : 1,450.26 = 631.19 : x
  2. Step 2: Convert to fraction form
    1,050.90/1,450.26 = 631.19/x
  3. Step 3: Cross multiply
    1,050.90x = 1,450.26 × 631.19
  4. Step 4: Simplify right side
    1,050.90x = 915,382.36
  5. Step 5: Solve for x
    x = 915,382.36/1,050.90
  6. Step 6: Final answer
    x = 871.05

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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.