Home / 4,182.78-5,769.86-3,686.64

Finding the Fourth Proportional to 4,182.78, 5,769.86 and 3,686.64

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Solution

The fourth proportional to 4,182.78, 5,769.86 and 3,686.64 is: 5,085.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,182.78 : 5,769.86 = 3,686.64 : x
  2. Step 2: Convert to fraction form
    4,182.78/5,769.86 = 3,686.64/x
  3. Step 3: Cross multiply
    4,182.78x = 5,769.86 × 3,686.64
  4. Step 4: Simplify right side
    4,182.78x = 21,271,396.67
  5. Step 5: Solve for x
    x = 21,271,396.67/4,182.78
  6. Step 6: Final answer
    x = 5,085.47

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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.