Home / 5,018.88-6,925.20-2,780.76

Finding the Fourth Proportional to 5,018.88, 6,925.20 and 2,780.76

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Solution

The fourth proportional to 5,018.88, 6,925.20 and 2,780.76 is: 3,836.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,018.88 : 6,925.20 = 2,780.76 : x
  2. Step 2: Convert to fraction form
    5,018.88/6,925.20 = 2,780.76/x
  3. Step 3: Cross multiply
    5,018.88x = 6,925.20 × 2,780.76
  4. Step 4: Simplify right side
    5,018.88x = 19,257,319.15
  5. Step 5: Solve for x
    x = 19,257,319.15/5,018.88
  6. Step 6: Final answer
    x = 3,836.98

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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.