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Finding the Fourth Proportional to 2,213.51, 3,319.98 and 570.08

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Solution

The fourth proportional to 2,213.51, 3,319.98 and 570.08 is: 855.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,213.51 : 3,319.98 = 570.08 : x
  2. Step 2: Convert to fraction form
    2,213.51/3,319.98 = 570.08/x
  3. Step 3: Cross multiply
    2,213.51x = 3,319.98 × 570.08
  4. Step 4: Simplify right side
    2,213.51x = 1,892,654.20
  5. Step 5: Solve for x
    x = 1,892,654.20/2,213.51
  6. Step 6: Final answer
    x = 855.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.