Home / 5,018.72-6,925.96-2,780.68

Finding the Fourth Proportional to 5,018.72, 6,925.96 and 2,780.68

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Solution

The fourth proportional to 5,018.72, 6,925.96 and 2,780.68 is: 3,837.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,018.72 : 6,925.96 = 2,780.68 : x
  2. Step 2: Convert to fraction form
    5,018.72/6,925.96 = 2,780.68/x
  3. Step 3: Cross multiply
    5,018.72x = 6,925.96 × 2,780.68
  4. Step 4: Simplify right side
    5,018.72x = 19,258,878.45
  5. Step 5: Solve for x
    x = 19,258,878.45/5,018.72
  6. Step 6: Final answer
    x = 3,837.41

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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.