Home / 2,818.35-3,888.90-1,559.25

Finding the Fourth Proportional to 2,818.35, 3,888.90 and 1,559.25

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Solution

The fourth proportional to 2,818.35, 3,888.90 and 1,559.25 is: 2,151.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,818.35 : 3,888.90 = 1,559.25 : x
  2. Step 2: Convert to fraction form
    2,818.35/3,888.90 = 1,559.25/x
  3. Step 3: Cross multiply
    2,818.35x = 3,888.90 × 1,559.25
  4. Step 4: Simplify right side
    2,818.35x = 6,063,767.33
  5. Step 5: Solve for x
    x = 6,063,767.33/2,818.35
  6. Step 6: Final answer
    x = 2,151.53

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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.