Home / 6,665.10-9,200.80-4,308.40

Finding the Fourth Proportional to 6,665.10, 9,200.80 and 4,308.40

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Solution

The fourth proportional to 6,665.10, 9,200.80 and 4,308.40 is: 5,947.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,665.10 : 9,200.80 = 4,308.40 : x
  2. Step 2: Convert to fraction form
    6,665.10/9,200.80 = 4,308.40/x
  3. Step 3: Cross multiply
    6,665.10x = 9,200.80 × 4,308.40
  4. Step 4: Simplify right side
    6,665.10x = 39,640,726.72
  5. Step 5: Solve for x
    x = 39,640,726.72/6,665.10
  6. Step 6: Final answer
    x = 5,947.51

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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.