Home / 5,416.26-8,124.38-1,312.26

Finding the Fourth Proportional to 5,416.26, 8,124.38 and 1,312.26

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Solution

The fourth proportional to 5,416.26, 8,124.38 and 1,312.26 is: 1,968.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,416.26 : 8,124.38 = 1,312.26 : x
  2. Step 2: Convert to fraction form
    5,416.26/8,124.38 = 1,312.26/x
  3. Step 3: Cross multiply
    5,416.26x = 8,124.38 × 1,312.26
  4. Step 4: Simplify right side
    5,416.26x = 10,661,298.90
  5. Step 5: Solve for x
    x = 10,661,298.90/5,416.26
  6. Step 6: Final answer
    x = 1,968.39

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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.