Home / 2,817.58-3,888.14-1,668.52

Finding the Fourth Proportional to 2,817.58, 3,888.14 and 1,668.52

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Solution

The fourth proportional to 2,817.58, 3,888.14 and 1,668.52 is: 2,302.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,817.58 : 3,888.14 = 1,668.52 : x
  2. Step 2: Convert to fraction form
    2,817.58/3,888.14 = 1,668.52/x
  3. Step 3: Cross multiply
    2,817.58x = 3,888.14 × 1,668.52
  4. Step 4: Simplify right side
    2,817.58x = 6,487,439.35
  5. Step 5: Solve for x
    x = 6,487,439.35/2,817.58
  6. Step 6: Final answer
    x = 2,302.49

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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.