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Finding the Fourth Proportional to 2,613.77, 3,607.16 and 1,728.03

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Solution

The fourth proportional to 2,613.77, 3,607.16 and 1,728.03 is: 2,384.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,613.77 : 3,607.16 = 1,728.03 : x
  2. Step 2: Convert to fraction form
    2,613.77/3,607.16 = 1,728.03/x
  3. Step 3: Cross multiply
    2,613.77x = 3,607.16 × 1,728.03
  4. Step 4: Simplify right side
    2,613.77x = 6,233,280.69
  5. Step 5: Solve for x
    x = 6,233,280.69/2,613.77
  6. Step 6: Final answer
    x = 2,384.79

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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.