Home / 2,447.90-3,378.70-1,503.91

Finding the Fourth Proportional to 2,447.90, 3,378.70 and 1,503.91

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Solution

The fourth proportional to 2,447.90, 3,378.70 and 1,503.91 is: 2,075.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,447.90 : 3,378.70 = 1,503.91 : x
  2. Step 2: Convert to fraction form
    2,447.90/3,378.70 = 1,503.91/x
  3. Step 3: Cross multiply
    2,447.90x = 3,378.70 × 1,503.91
  4. Step 4: Simplify right side
    2,447.90x = 5,081,260.72
  5. Step 5: Solve for x
    x = 5,081,260.72/2,447.90
  6. Step 6: Final answer
    x = 2,075.76

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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.