Home / 3,439.60-4,747.08-2,113.48

Finding the Fourth Proportional to 3,439.60, 4,747.08 and 2,113.48

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Solution

The fourth proportional to 3,439.60, 4,747.08 and 2,113.48 is: 2,916.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,439.60 : 4,747.08 = 2,113.48 : x
  2. Step 2: Convert to fraction form
    3,439.60/4,747.08 = 2,113.48/x
  3. Step 3: Cross multiply
    3,439.60x = 4,747.08 × 2,113.48
  4. Step 4: Simplify right side
    3,439.60x = 10,032,858.64
  5. Step 5: Solve for x
    x = 10,032,858.64/3,439.60
  6. Step 6: Final answer
    x = 2,916.87

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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.