Home / 2,901.81-4,351.95-1,977.20

Finding the Fourth Proportional to 2,901.81, 4,351.95 and 1,977.20

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Solution

The fourth proportional to 2,901.81, 4,351.95 and 1,977.20 is: 2,965.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,901.81 : 4,351.95 = 1,977.20 : x
  2. Step 2: Convert to fraction form
    2,901.81/4,351.95 = 1,977.20/x
  3. Step 3: Cross multiply
    2,901.81x = 4,351.95 × 1,977.20
  4. Step 4: Simplify right side
    2,901.81x = 8,604,653.78
  5. Step 5: Solve for x
    x = 8,604,653.78/2,901.81
  6. Step 6: Final answer
    x = 2,965.27

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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.