Home / 2,982.29-4,115.95-1,803.13

Finding the Fourth Proportional to 2,982.29, 4,115.95 and 1,803.13

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Solution

The fourth proportional to 2,982.29, 4,115.95 and 1,803.13 is: 2,488.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,982.29 : 4,115.95 = 1,803.13 : x
  2. Step 2: Convert to fraction form
    2,982.29/4,115.95 = 1,803.13/x
  3. Step 3: Cross multiply
    2,982.29x = 4,115.95 × 1,803.13
  4. Step 4: Simplify right side
    2,982.29x = 7,421,578.13
  5. Step 5: Solve for x
    x = 7,421,578.13/2,982.29
  6. Step 6: Final answer
    x = 2,488.55

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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.