Home / 4,890.28-7,335.78-1,427.50

Finding the Fourth Proportional to 4,890.28, 7,335.78 and 1,427.50

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Solution

The fourth proportional to 4,890.28, 7,335.78 and 1,427.50 is: 2,141.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,890.28 : 7,335.78 = 1,427.50 : x
  2. Step 2: Convert to fraction form
    4,890.28/7,335.78 = 1,427.50/x
  3. Step 3: Cross multiply
    4,890.28x = 7,335.78 × 1,427.50
  4. Step 4: Simplify right side
    4,890.28x = 10,471,825.95
  5. Step 5: Solve for x
    x = 10,471,825.95/4,890.28
  6. Step 6: Final answer
    x = 2,141.36

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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.