Home / 6,429.78-9,643.02-2,730.12

Finding the Fourth Proportional to 6,429.78, 9,643.02 and 2,730.12

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Solution

The fourth proportional to 6,429.78, 9,643.02 and 2,730.12 is: 4,094.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,429.78 : 9,643.02 = 2,730.12 : x
  2. Step 2: Convert to fraction form
    6,429.78/9,643.02 = 2,730.12/x
  3. Step 3: Cross multiply
    6,429.78x = 9,643.02 × 2,730.12
  4. Step 4: Simplify right side
    6,429.78x = 26,326,601.76
  5. Step 5: Solve for x
    x = 26,326,601.76/6,429.78
  6. Step 6: Final answer
    x = 4,094.48

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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.