Home / 2,983.18-4,115.50-1,803.56

Finding the Fourth Proportional to 2,983.18, 4,115.50 and 1,803.56

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Solution

The fourth proportional to 2,983.18, 4,115.50 and 1,803.56 is: 2,488.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,983.18 : 4,115.50 = 1,803.56 : x
  2. Step 2: Convert to fraction form
    2,983.18/4,115.50 = 1,803.56/x
  3. Step 3: Cross multiply
    2,983.18x = 4,115.50 × 1,803.56
  4. Step 4: Simplify right side
    2,983.18x = 7,422,551.18
  5. Step 5: Solve for x
    x = 7,422,551.18/2,983.18
  6. Step 6: Final answer
    x = 2,488.13

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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.