Home / 2,097.09-3,143.95-1,357.45

Finding the Fourth Proportional to 2,097.09, 3,143.95 and 1,357.45

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Solution

The fourth proportional to 2,097.09, 3,143.95 and 1,357.45 is: 2,035.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,097.09 : 3,143.95 = 1,357.45 : x
  2. Step 2: Convert to fraction form
    2,097.09/3,143.95 = 1,357.45/x
  3. Step 3: Cross multiply
    2,097.09x = 3,143.95 × 1,357.45
  4. Step 4: Simplify right side
    2,097.09x = 4,267,743.67
  5. Step 5: Solve for x
    x = 4,267,743.67/2,097.09
  6. Step 6: Final answer
    x = 2,035.08

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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.