Home / 5,374.67-7,419.56-3,136.19

Finding the Fourth Proportional to 5,374.67, 7,419.56 and 3,136.19

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Solution

The fourth proportional to 5,374.67, 7,419.56 and 3,136.19 is: 4,329.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,374.67 : 7,419.56 = 3,136.19 : x
  2. Step 2: Convert to fraction form
    5,374.67/7,419.56 = 3,136.19/x
  3. Step 3: Cross multiply
    5,374.67x = 7,419.56 × 3,136.19
  4. Step 4: Simplify right side
    5,374.67x = 23,269,097.10
  5. Step 5: Solve for x
    x = 23,269,097.10/5,374.67
  6. Step 6: Final answer
    x = 4,329.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.