Home / 2,840.10-4,251.03-1,520.55

Finding the Fourth Proportional to 2,840.10, 4,251.03 and 1,520.55

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Solution

The fourth proportional to 2,840.10, 4,251.03 and 1,520.55 is: 2,275.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,840.10 : 4,251.03 = 1,520.55 : x
  2. Step 2: Convert to fraction form
    2,840.10/4,251.03 = 1,520.55/x
  3. Step 3: Cross multiply
    2,840.10x = 4,251.03 × 1,520.55
  4. Step 4: Simplify right side
    2,840.10x = 6,463,903.67
  5. Step 5: Solve for x
    x = 6,463,903.67/2,840.10
  6. Step 6: Final answer
    x = 2,275.94

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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.