Home / 5,018.89-6,925.86-2,780.86

Finding the Fourth Proportional to 5,018.89, 6,925.86 and 2,780.86

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Solution

The fourth proportional to 5,018.89, 6,925.86 and 2,780.86 is: 3,837.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,018.89 : 6,925.86 = 2,780.86 : x
  2. Step 2: Convert to fraction form
    5,018.89/6,925.86 = 2,780.86/x
  3. Step 3: Cross multiply
    5,018.89x = 6,925.86 × 2,780.86
  4. Step 4: Simplify right side
    5,018.89x = 19,259,847.04
  5. Step 5: Solve for x
    x = 19,259,847.04/5,018.89
  6. Step 6: Final answer
    x = 3,837.47

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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.