Home / 2,545.12-3,513.78-1,800.63

Finding the Fourth Proportional to 2,545.12, 3,513.78 and 1,800.63

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Solution

The fourth proportional to 2,545.12, 3,513.78 and 1,800.63 is: 2,485.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,545.12 : 3,513.78 = 1,800.63 : x
  2. Step 2: Convert to fraction form
    2,545.12/3,513.78 = 1,800.63/x
  3. Step 3: Cross multiply
    2,545.12x = 3,513.78 × 1,800.63
  4. Step 4: Simplify right side
    2,545.12x = 6,327,017.68
  5. Step 5: Solve for x
    x = 6,327,017.68/2,545.12
  6. Step 6: Final answer
    x = 2,485.94

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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.