Home / 2,840.90-4,238.53-2,529.05

Finding the Fourth Proportional to 2,840.90, 4,238.53 and 2,529.05

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Solution

The fourth proportional to 2,840.90, 4,238.53 and 2,529.05 is: 3,773.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,840.90 : 4,238.53 = 2,529.05 : x
  2. Step 2: Convert to fraction form
    2,840.90/4,238.53 = 2,529.05/x
  3. Step 3: Cross multiply
    2,840.90x = 4,238.53 × 2,529.05
  4. Step 4: Simplify right side
    2,840.90x = 10,719,454.30
  5. Step 5: Solve for x
    x = 10,719,454.30/2,840.90
  6. Step 6: Final answer
    x = 3,773.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.