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Finding the Fourth Proportional to 3,614.63, 4,987.98 and 2,621.16

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Solution

The fourth proportional to 3,614.63, 4,987.98 and 2,621.16 is: 3,617.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,614.63 : 4,987.98 = 2,621.16 : x
  2. Step 2: Convert to fraction form
    3,614.63/4,987.98 = 2,621.16/x
  3. Step 3: Cross multiply
    3,614.63x = 4,987.98 × 2,621.16
  4. Step 4: Simplify right side
    3,614.63x = 13,074,293.66
  5. Step 5: Solve for x
    x = 13,074,293.66/3,614.63
  6. Step 6: Final answer
    x = 3,617.05

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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.