Home / 5,185.23-7,776.51-2,409.18

Finding the Fourth Proportional to 5,185.23, 7,776.51 and 2,409.18

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Solution

The fourth proportional to 5,185.23, 7,776.51 and 2,409.18 is: 3,613.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,185.23 : 7,776.51 = 2,409.18 : x
  2. Step 2: Convert to fraction form
    5,185.23/7,776.51 = 2,409.18/x
  3. Step 3: Cross multiply
    5,185.23x = 7,776.51 × 2,409.18
  4. Step 4: Simplify right side
    5,185.23x = 18,735,012.36
  5. Step 5: Solve for x
    x = 18,735,012.36/5,185.23
  6. Step 6: Final answer
    x = 3,613.15

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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.