Home / 4,098.78-5,655.75-2,420.46

Finding the Fourth Proportional to 4,098.78, 5,655.75 and 2,420.46

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Solution

The fourth proportional to 4,098.78, 5,655.75 and 2,420.46 is: 3,339.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,098.78 : 5,655.75 = 2,420.46 : x
  2. Step 2: Convert to fraction form
    4,098.78/5,655.75 = 2,420.46/x
  3. Step 3: Cross multiply
    4,098.78x = 5,655.75 × 2,420.46
  4. Step 4: Simplify right side
    4,098.78x = 13,689,516.65
  5. Step 5: Solve for x
    x = 13,689,516.65/4,098.78
  6. Step 6: Final answer
    x = 3,339.90

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1.5x scale

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.