Home / 5,335.72-7,363.62-2,978.08

Finding the Fourth Proportional to 5,335.72, 7,363.62 and 2,978.08

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Solution

The fourth proportional to 5,335.72, 7,363.62 and 2,978.08 is: 4,109.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,335.72 : 7,363.62 = 2,978.08 : x
  2. Step 2: Convert to fraction form
    5,335.72/7,363.62 = 2,978.08/x
  3. Step 3: Cross multiply
    5,335.72x = 7,363.62 × 2,978.08
  4. Step 4: Simplify right side
    5,335.72x = 21,929,449.45
  5. Step 5: Solve for x
    x = 21,929,449.45/5,335.72
  6. Step 6: Final answer
    x = 4,109.93

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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.