Home / 2,207.80-3,045.72-1,368.28

Finding the Fourth Proportional to 2,207.80, 3,045.72 and 1,368.28

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Solution

The fourth proportional to 2,207.80, 3,045.72 and 1,368.28 is: 1,887.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,207.80 : 3,045.72 = 1,368.28 : x
  2. Step 2: Convert to fraction form
    2,207.80/3,045.72 = 1,368.28/x
  3. Step 3: Cross multiply
    2,207.80x = 3,045.72 × 1,368.28
  4. Step 4: Simplify right side
    2,207.80x = 4,167,397.76
  5. Step 5: Solve for x
    x = 4,167,397.76/2,207.80
  6. Step 6: Final answer
    x = 1,887.58

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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.