Home / 2,800.37-3,864.68-1,621.52

Finding the Fourth Proportional to 2,800.37, 3,864.68 and 1,621.52

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Solution

The fourth proportional to 2,800.37, 3,864.68 and 1,621.52 is: 2,237.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,800.37 : 3,864.68 = 1,621.52 : x
  2. Step 2: Convert to fraction form
    2,800.37/3,864.68 = 1,621.52/x
  3. Step 3: Cross multiply
    2,800.37x = 3,864.68 × 1,621.52
  4. Step 4: Simplify right side
    2,800.37x = 6,266,628.48
  5. Step 5: Solve for x
    x = 6,266,628.48/2,800.37
  6. Step 6: Final answer
    x = 2,237.79

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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.