Home / 2,883.17-3,979.35-1,888.09

Finding the Fourth Proportional to 2,883.17, 3,979.35 and 1,888.09

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Solution

The fourth proportional to 2,883.17, 3,979.35 and 1,888.09 is: 2,605.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,883.17 : 3,979.35 = 1,888.09 : x
  2. Step 2: Convert to fraction form
    2,883.17/3,979.35 = 1,888.09/x
  3. Step 3: Cross multiply
    2,883.17x = 3,979.35 × 1,888.09
  4. Step 4: Simplify right side
    2,883.17x = 7,513,370.94
  5. Step 5: Solve for x
    x = 7,513,370.94/2,883.17
  6. Step 6: Final answer
    x = 2,605.94

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1.5x scale

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.