Home / 1,263.21-1,743.14-696.02

Finding the Fourth Proportional to 1,263.21, 1,743.14 and 696.02

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Solution

The fourth proportional to 1,263.21, 1,743.14 and 696.02 is: 960.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,263.21 : 1,743.14 = 696.02 : x
  2. Step 2: Convert to fraction form
    1,263.21/1,743.14 = 696.02/x
  3. Step 3: Cross multiply
    1,263.21x = 1,743.14 × 696.02
  4. Step 4: Simplify right side
    1,263.21x = 1,213,256.38
  5. Step 5: Solve for x
    x = 1,213,256.38/1,263.21
  6. Step 6: Final answer
    x = 960.46

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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.