Home / 2,930.50-4,044.09-1,688.50

Finding the Fourth Proportional to 2,930.50, 4,044.09 and 1,688.50

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Solution

The fourth proportional to 2,930.50, 4,044.09 and 1,688.50 is: 2,330.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,930.50 : 4,044.09 = 1,688.50 : x
  2. Step 2: Convert to fraction form
    2,930.50/4,044.09 = 1,688.50/x
  3. Step 3: Cross multiply
    2,930.50x = 4,044.09 × 1,688.50
  4. Step 4: Simplify right side
    2,930.50x = 6,828,445.97
  5. Step 5: Solve for x
    x = 6,828,445.97/2,930.50
  6. Step 6: Final answer
    x = 2,330.13

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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.