Home / 2,913.90-4,021.20-1,654.95

Finding the Fourth Proportional to 2,913.90, 4,021.20 and 1,654.95

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Solution

The fourth proportional to 2,913.90, 4,021.20 and 1,654.95 is: 2,283.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,913.90 : 4,021.20 = 1,654.95 : x
  2. Step 2: Convert to fraction form
    2,913.90/4,021.20 = 1,654.95/x
  3. Step 3: Cross multiply
    2,913.90x = 4,021.20 × 1,654.95
  4. Step 4: Simplify right side
    2,913.90x = 6,654,884.94
  5. Step 5: Solve for x
    x = 6,654,884.94/2,913.90
  6. Step 6: Final answer
    x = 2,283.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.