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Finding the Fourth Proportional to 1,777.12, 2,664.88 and 544.32

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Solution

The fourth proportional to 1,777.12, 2,664.88 and 544.32 is: 816.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,777.12 : 2,664.88 = 544.32 : x
  2. Step 2: Convert to fraction form
    1,777.12/2,664.88 = 544.32/x
  3. Step 3: Cross multiply
    1,777.12x = 2,664.88 × 544.32
  4. Step 4: Simplify right side
    1,777.12x = 1,450,547.48
  5. Step 5: Solve for x
    x = 1,450,547.48/1,777.12
  6. Step 6: Final answer
    x = 816.23

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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.