Home / 5,314.23-7,971.35-2,389.12

Finding the Fourth Proportional to 5,314.23, 7,971.35 and 2,389.12

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Solution

The fourth proportional to 5,314.23, 7,971.35 and 2,389.12 is: 3,583.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,314.23 : 7,971.35 = 2,389.12 : x
  2. Step 2: Convert to fraction form
    5,314.23/7,971.35 = 2,389.12/x
  3. Step 3: Cross multiply
    5,314.23x = 7,971.35 × 2,389.12
  4. Step 4: Simplify right side
    5,314.23x = 19,044,479.84
  5. Step 5: Solve for x
    x = 19,044,479.84/5,314.23
  6. Step 6: Final answer
    x = 3,583.68

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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.