Home / 1,988.22-2,742.42-1,514.37

Finding the Fourth Proportional to 1,988.22, 2,742.42 and 1,514.37

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Solution

The fourth proportional to 1,988.22, 2,742.42 and 1,514.37 is: 2,088.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988.22 : 2,742.42 = 1,514.37 : x
  2. Step 2: Convert to fraction form
    1,988.22/2,742.42 = 1,514.37/x
  3. Step 3: Cross multiply
    1,988.22x = 2,742.42 × 1,514.37
  4. Step 4: Simplify right side
    1,988.22x = 4,153,038.58
  5. Step 5: Solve for x
    x = 4,153,038.58/1,988.22
  6. Step 6: Final answer
    x = 2,088.82

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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.