Home / 5,018.18-6,925.10-2,780.20

Finding the Fourth Proportional to 5,018.18, 6,925.10 and 2,780.20

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Solution

The fourth proportional to 5,018.18, 6,925.10 and 2,780.20 is: 3,836.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,018.18 : 6,925.10 = 2,780.20 : x
  2. Step 2: Convert to fraction form
    5,018.18/6,925.10 = 2,780.20/x
  3. Step 3: Cross multiply
    5,018.18x = 6,925.10 × 2,780.20
  4. Step 4: Simplify right side
    5,018.18x = 19,253,157.78
  5. Step 5: Solve for x
    x = 19,253,157.78/5,018.18
  6. Step 6: Final answer
    x = 3,836.68

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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.