Home / 1,050.87-1,449.66-631.02

Finding the Fourth Proportional to 1,050.87, 1,449.66 and 631.02

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Solution

The fourth proportional to 1,050.87, 1,449.66 and 631.02 is: 870.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,050.87 : 1,449.66 = 631.02 : x
  2. Step 2: Convert to fraction form
    1,050.87/1,449.66 = 631.02/x
  3. Step 3: Cross multiply
    1,050.87x = 1,449.66 × 631.02
  4. Step 4: Simplify right side
    1,050.87x = 914,764.45
  5. Step 5: Solve for x
    x = 914,764.45/1,050.87
  6. Step 6: Final answer
    x = 870.48

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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.