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Finding the Fourth Proportional to 2,478.83, 3,717.36 and 723.33

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Solution

The fourth proportional to 2,478.83, 3,717.36 and 723.33 is: 1,084.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,478.83 : 3,717.36 = 723.33 : x
  2. Step 2: Convert to fraction form
    2,478.83/3,717.36 = 723.33/x
  3. Step 3: Cross multiply
    2,478.83x = 3,717.36 × 723.33
  4. Step 4: Simplify right side
    2,478.83x = 2,688,878.01
  5. Step 5: Solve for x
    x = 2,688,878.01/2,478.83
  6. Step 6: Final answer
    x = 1,084.74

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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.