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Finding the Fourth Proportional to 1,888.60, 2,833.42 and 572.30

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Solution

The fourth proportional to 1,888.60, 2,833.42 and 572.30 is: 858.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,888.60 : 2,833.42 = 572.30 : x
  2. Step 2: Convert to fraction form
    1,888.60/2,833.42 = 572.30/x
  3. Step 3: Cross multiply
    1,888.60x = 2,833.42 × 572.30
  4. Step 4: Simplify right side
    1,888.60x = 1,621,573.52
  5. Step 5: Solve for x
    x = 1,621,573.52/1,888.60
  6. Step 6: Final answer
    x = 858.61

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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.