Home / 2,651.87-3,657.56-1,943.45

Finding the Fourth Proportional to 2,651.87, 3,657.56 and 1,943.45

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Solution

The fourth proportional to 2,651.87, 3,657.56 and 1,943.45 is: 2,680.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,651.87 : 3,657.56 = 1,943.45 : x
  2. Step 2: Convert to fraction form
    2,651.87/3,657.56 = 1,943.45/x
  3. Step 3: Cross multiply
    2,651.87x = 3,657.56 × 1,943.45
  4. Step 4: Simplify right side
    2,651.87x = 7,108,256.98
  5. Step 5: Solve for x
    x = 7,108,256.98/2,651.87
  6. Step 6: Final answer
    x = 2,680.47

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1.5x scale

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.