Home / 1,911.51-2,865.44-1,045.22

Finding the Fourth Proportional to 1,911.51, 2,865.44 and 1,045.22

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Solution

The fourth proportional to 1,911.51, 2,865.44 and 1,045.22 is: 1,566.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,911.51 : 2,865.44 = 1,045.22 : x
  2. Step 2: Convert to fraction form
    1,911.51/2,865.44 = 1,045.22/x
  3. Step 3: Cross multiply
    1,911.51x = 2,865.44 × 1,045.22
  4. Step 4: Simplify right side
    1,911.51x = 2,994,995.64
  5. Step 5: Solve for x
    x = 2,994,995.64/1,911.51
  6. Step 6: Final answer
    x = 1,566.82

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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.