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Finding the Fourth Proportional to 1,886.80, 2,830.18 and 588.28

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Solution

The fourth proportional to 1,886.80, 2,830.18 and 588.28 is: 882.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,886.80 : 2,830.18 = 588.28 : x
  2. Step 2: Convert to fraction form
    1,886.80/2,830.18 = 588.28/x
  3. Step 3: Cross multiply
    1,886.80x = 2,830.18 × 588.28
  4. Step 4: Simplify right side
    1,886.80x = 1,664,938.29
  5. Step 5: Solve for x
    x = 1,664,938.29/1,886.80
  6. Step 6: Final answer
    x = 882.41

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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.