Home / 3,131.25-4,695.75-1,050.63

Finding the Fourth Proportional to 3,131.25, 4,695.75 and 1,050.63

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Solution

The fourth proportional to 3,131.25, 4,695.75 and 1,050.63 is: 1,575.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,131.25 : 4,695.75 = 1,050.63 : x
  2. Step 2: Convert to fraction form
    3,131.25/4,695.75 = 1,050.63/x
  3. Step 3: Cross multiply
    3,131.25x = 4,695.75 × 1,050.63
  4. Step 4: Simplify right side
    3,131.25x = 4,933,495.82
  5. Step 5: Solve for x
    x = 4,933,495.82/3,131.25
  6. Step 6: Final answer
    x = 1,575.57

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Half scale
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Double scale
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1.5x scale

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.