Home / 4,718.31-7,077.38-1,208.28

Finding the Fourth Proportional to 4,718.31, 7,077.38 and 1,208.28

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Solution

The fourth proportional to 4,718.31, 7,077.38 and 1,208.28 is: 1,812.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,718.31 : 7,077.38 = 1,208.28 : x
  2. Step 2: Convert to fraction form
    4,718.31/7,077.38 = 1,208.28/x
  3. Step 3: Cross multiply
    4,718.31x = 7,077.38 × 1,208.28
  4. Step 4: Simplify right side
    4,718.31x = 8,551,456.71
  5. Step 5: Solve for x
    x = 8,551,456.71/4,718.31
  6. Step 6: Final answer
    x = 1,812.40

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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.