Home / 4,085.66-6,129.59-1,164.21

Finding the Fourth Proportional to 4,085.66, 6,129.59 and 1,164.21

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Solution

The fourth proportional to 4,085.66, 6,129.59 and 1,164.21 is: 1,746.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,085.66 : 6,129.59 = 1,164.21 : x
  2. Step 2: Convert to fraction form
    4,085.66/6,129.59 = 1,164.21/x
  3. Step 3: Cross multiply
    4,085.66x = 6,129.59 × 1,164.21
  4. Step 4: Simplify right side
    4,085.66x = 7,136,124.15
  5. Step 5: Solve for x
    x = 7,136,124.15/4,085.66
  6. Step 6: Final answer
    x = 1,746.63

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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.