Home / 2,045.18-2,821.92-1,205.30

Finding the Fourth Proportional to 2,045.18, 2,821.92 and 1,205.30

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Solution

The fourth proportional to 2,045.18, 2,821.92 and 1,205.30 is: 1,663.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,045.18 : 2,821.92 = 1,205.30 : x
  2. Step 2: Convert to fraction form
    2,045.18/2,821.92 = 1,205.30/x
  3. Step 3: Cross multiply
    2,045.18x = 2,821.92 × 1,205.30
  4. Step 4: Simplify right side
    2,045.18x = 3,401,260.18
  5. Step 5: Solve for x
    x = 3,401,260.18/2,045.18
  6. Step 6: Final answer
    x = 1,663.06

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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.