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Finding the Fourth Proportional to 3,555, 4,894.29 and 3,089.07

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Solution

The fourth proportional to 3,555, 4,894.29 and 3,089.07 is: 4,252.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,555 : 4,894.29 = 3,089.07 : x
  2. Step 2: Convert to fraction form
    3,555/4,894.29 = 3,089.07/x
  3. Step 3: Cross multiply
    3,555x = 4,894.29 × 3,089.07
  4. Step 4: Simplify right side
    3,555x = 15,118,804.41
  5. Step 5: Solve for x
    x = 15,118,804.41/3,555
  6. Step 6: Final answer
    x = 4,252.83

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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.