Home / 2,840.16-4,255.92-2,545.68

Finding the Fourth Proportional to 2,840.16, 4,255.92 and 2,545.68

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Solution

The fourth proportional to 2,840.16, 4,255.92 and 2,545.68 is: 3,814.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,840.16 : 4,255.92 = 2,545.68 : x
  2. Step 2: Convert to fraction form
    2,840.16/4,255.92 = 2,545.68/x
  3. Step 3: Cross multiply
    2,840.16x = 4,255.92 × 2,545.68
  4. Step 4: Simplify right side
    2,840.16x = 10,834,210.43
  5. Step 5: Solve for x
    x = 10,834,210.43/2,840.16
  6. Step 6: Final answer
    x = 3,814.65

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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.