Home / 3,089.93-4,264.74-2,840.85

Finding the Fourth Proportional to 3,089.93, 4,264.74 and 2,840.85

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Solution

The fourth proportional to 3,089.93, 4,264.74 and 2,840.85 is: 3,920.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,089.93 : 4,264.74 = 2,840.85 : x
  2. Step 2: Convert to fraction form
    3,089.93/4,264.74 = 2,840.85/x
  3. Step 3: Cross multiply
    3,089.93x = 4,264.74 × 2,840.85
  4. Step 4: Simplify right side
    3,089.93x = 12,115,486.63
  5. Step 5: Solve for x
    x = 12,115,486.63/3,089.93
  6. Step 6: Final answer
    x = 3,920.96

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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.