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Finding the Fourth Proportional to 1,544.33, 2,316.84 and 722.16

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Solution

The fourth proportional to 1,544.33, 2,316.84 and 722.16 is: 1,083.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,544.33 : 2,316.84 = 722.16 : x
  2. Step 2: Convert to fraction form
    1,544.33/2,316.84 = 722.16/x
  3. Step 3: Cross multiply
    1,544.33x = 2,316.84 × 722.16
  4. Step 4: Simplify right side
    1,544.33x = 1,673,129.17
  5. Step 5: Solve for x
    x = 1,673,129.17/1,544.33
  6. Step 6: Final answer
    x = 1,083.40

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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.