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Finding the Fourth Proportional to 1,777.59, 2,664.45 and 955.08

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Solution

The fourth proportional to 1,777.59, 2,664.45 and 955.08 is: 1,431.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,777.59 : 2,664.45 = 955.08 : x
  2. Step 2: Convert to fraction form
    1,777.59/2,664.45 = 955.08/x
  3. Step 3: Cross multiply
    1,777.59x = 2,664.45 × 955.08
  4. Step 4: Simplify right side
    1,777.59x = 2,544,762.91
  5. Step 5: Solve for x
    x = 2,544,762.91/1,777.59
  6. Step 6: Final answer
    x = 1,431.58

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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.