Home / 2,045.08-3,068.96-1,121.28

Finding the Fourth Proportional to 2,045.08, 3,068.96 and 1,121.28

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Solution

The fourth proportional to 2,045.08, 3,068.96 and 1,121.28 is: 1,682.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,045.08 : 3,068.96 = 1,121.28 : x
  2. Step 2: Convert to fraction form
    2,045.08/3,068.96 = 1,121.28/x
  3. Step 3: Cross multiply
    2,045.08x = 3,068.96 × 1,121.28
  4. Step 4: Simplify right side
    2,045.08x = 3,441,181.71
  5. Step 5: Solve for x
    x = 3,441,181.71/2,045.08
  6. Step 6: Final answer
    x = 1,682.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.