Home / 7,029.78-9,701.06-3,886.02

Finding the Fourth Proportional to 7,029.78, 9,701.06 and 3,886.02

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Solution

The fourth proportional to 7,029.78, 9,701.06 and 3,886.02 is: 5,362.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,029.78 : 9,701.06 = 3,886.02 : x
  2. Step 2: Convert to fraction form
    7,029.78/9,701.06 = 3,886.02/x
  3. Step 3: Cross multiply
    7,029.78x = 9,701.06 × 3,886.02
  4. Step 4: Simplify right side
    7,029.78x = 37,698,513.18
  5. Step 5: Solve for x
    x = 37,698,513.18/7,029.78
  6. Step 6: Final answer
    x = 5,362.69

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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.