Home / 2,885.78-4,330.47-1,425.02

Finding the Fourth Proportional to 2,885.78, 4,330.47 and 1,425.02

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Solution

The fourth proportional to 2,885.78, 4,330.47 and 1,425.02 is: 2,138.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,885.78 : 4,330.47 = 1,425.02 : x
  2. Step 2: Convert to fraction form
    2,885.78/4,330.47 = 1,425.02/x
  3. Step 3: Cross multiply
    2,885.78x = 4,330.47 × 1,425.02
  4. Step 4: Simplify right side
    2,885.78x = 6,171,006.36
  5. Step 5: Solve for x
    x = 6,171,006.36/2,885.78
  6. Step 6: Final answer
    x = 2,138.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.