Home / 4,901.36-7,351.40-1,390.97

Finding the Fourth Proportional to 4,901.36, 7,351.40 and 1,390.97

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Solution

The fourth proportional to 4,901.36, 7,351.40 and 1,390.97 is: 2,086.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,901.36 : 7,351.40 = 1,390.97 : x
  2. Step 2: Convert to fraction form
    4,901.36/7,351.40 = 1,390.97/x
  3. Step 3: Cross multiply
    4,901.36x = 7,351.40 × 1,390.97
  4. Step 4: Simplify right side
    4,901.36x = 10,225,542.41
  5. Step 5: Solve for x
    x = 10,225,542.41/4,901.36
  6. Step 6: Final answer
    x = 2,086.27

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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.