Home / 4,407.48-6,611.22-1,287.63

Finding the Fourth Proportional to 4,407.48, 6,611.22 and 1,287.63

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Solution

The fourth proportional to 4,407.48, 6,611.22 and 1,287.63 is: 1,931.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,407.48 : 6,611.22 = 1,287.63 : x
  2. Step 2: Convert to fraction form
    4,407.48/6,611.22 = 1,287.63/x
  3. Step 3: Cross multiply
    4,407.48x = 6,611.22 × 1,287.63
  4. Step 4: Simplify right side
    4,407.48x = 8,512,805.21
  5. Step 5: Solve for x
    x = 8,512,805.21/4,407.48
  6. Step 6: Final answer
    x = 1,931.45

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Half scale
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Double scale
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Similar ratio
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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.