Home / 2,621.85-3,618.92-1,560.36

Finding the Fourth Proportional to 2,621.85, 3,618.92 and 1,560.36

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Solution

The fourth proportional to 2,621.85, 3,618.92 and 1,560.36 is: 2,153.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,621.85 : 3,618.92 = 1,560.36 : x
  2. Step 2: Convert to fraction form
    2,621.85/3,618.92 = 1,560.36/x
  3. Step 3: Cross multiply
    2,621.85x = 3,618.92 × 1,560.36
  4. Step 4: Simplify right side
    2,621.85x = 5,646,810.21
  5. Step 5: Solve for x
    x = 5,646,810.21/2,621.85
  6. Step 6: Final answer
    x = 2,153.75

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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.