Home / 1,776.16-2,664.24-477.66

Finding the Fourth Proportional to 1,776.16, 2,664.24 and 477.66

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Solution

The fourth proportional to 1,776.16, 2,664.24 and 477.66 is: 716.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,776.16 : 2,664.24 = 477.66 : x
  2. Step 2: Convert to fraction form
    1,776.16/2,664.24 = 477.66/x
  3. Step 3: Cross multiply
    1,776.16x = 2,664.24 × 477.66
  4. Step 4: Simplify right side
    1,776.16x = 1,272,600.88
  5. Step 5: Solve for x
    x = 1,272,600.88/1,776.16
  6. Step 6: Final answer
    x = 716.49

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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.