Home / 2,621.63-3,617.81-1,426.63

Finding the Fourth Proportional to 2,621.63, 3,617.81 and 1,426.63

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Solution

The fourth proportional to 2,621.63, 3,617.81 and 1,426.63 is: 1,968.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,621.63 : 3,617.81 = 1,426.63 : x
  2. Step 2: Convert to fraction form
    2,621.63/3,617.81 = 1,426.63/x
  3. Step 3: Cross multiply
    2,621.63x = 3,617.81 × 1,426.63
  4. Step 4: Simplify right side
    2,621.63x = 5,161,276.28
  5. Step 5: Solve for x
    x = 5,161,276.28/2,621.63
  6. Step 6: Final answer
    x = 1,968.73

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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.