Home / 1,135.50-1,567.19-743.36

Finding the Fourth Proportional to 1,135.50, 1,567.19 and 743.36

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Solution

The fourth proportional to 1,135.50, 1,567.19 and 743.36 is: 1,025.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,135.50 : 1,567.19 = 743.36 : x
  2. Step 2: Convert to fraction form
    1,135.50/1,567.19 = 743.36/x
  3. Step 3: Cross multiply
    1,135.50x = 1,567.19 × 743.36
  4. Step 4: Simplify right side
    1,135.50x = 1,164,986.36
  5. Step 5: Solve for x
    x = 1,164,986.36/1,135.50
  6. Step 6: Final answer
    x = 1,025.97

Related Problems

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.