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Finding the Fourth Proportional to 3,053.99, 4,213.86 and 1,728.02

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Solution

The fourth proportional to 3,053.99, 4,213.86 and 1,728.02 is: 2,384.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,053.99 : 4,213.86 = 1,728.02 : x
  2. Step 2: Convert to fraction form
    3,053.99/4,213.86 = 1,728.02/x
  3. Step 3: Cross multiply
    3,053.99x = 4,213.86 × 1,728.02
  4. Step 4: Simplify right side
    3,053.99x = 7,281,613.29
  5. Step 5: Solve for x
    x = 7,281,613.29/3,053.99
  6. Step 6: Final answer
    x = 2,384.30

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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.