Home / 2,688.08-4,030.56-1,042.71

Finding the Fourth Proportional to 2,688.08, 4,030.56 and 1,042.71

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Solution

The fourth proportional to 2,688.08, 4,030.56 and 1,042.71 is: 1,563.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688.08 : 4,030.56 = 1,042.71 : x
  2. Step 2: Convert to fraction form
    2,688.08/4,030.56 = 1,042.71/x
  3. Step 3: Cross multiply
    2,688.08x = 4,030.56 × 1,042.71
  4. Step 4: Simplify right side
    2,688.08x = 4,202,705.22
  5. Step 5: Solve for x
    x = 4,202,705.22/2,688.08
  6. Step 6: Final answer
    x = 1,563.46

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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.