Home / 5,018.47-6,925.10-2,780.17

Finding the Fourth Proportional to 5,018.47, 6,925.10 and 2,780.17

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Solution

The fourth proportional to 5,018.47, 6,925.10 and 2,780.17 is: 3,836.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,018.47 : 6,925.10 = 2,780.17 : x
  2. Step 2: Convert to fraction form
    5,018.47/6,925.10 = 2,780.17/x
  3. Step 3: Cross multiply
    5,018.47x = 6,925.10 × 2,780.17
  4. Step 4: Simplify right side
    5,018.47x = 19,252,924.05
  5. Step 5: Solve for x
    x = 19,252,924.05/5,018.47
  6. Step 6: Final answer
    x = 3,836.42

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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.