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Finding the Fourth Proportional to 1,925.44, 2,887.80 and 538.84

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Solution

The fourth proportional to 1,925.44, 2,887.80 and 538.84 is: 808.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,925.44 : 2,887.80 = 538.84 : x
  2. Step 2: Convert to fraction form
    1,925.44/2,887.80 = 538.84/x
  3. Step 3: Cross multiply
    1,925.44x = 2,887.80 × 538.84
  4. Step 4: Simplify right side
    1,925.44x = 1,556,062.15
  5. Step 5: Solve for x
    x = 1,556,062.15/1,925.44
  6. Step 6: Final answer
    x = 808.16

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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.