Home / 2,809.47-3,877.53-1,852.05

Finding the Fourth Proportional to 2,809.47, 3,877.53 and 1,852.05

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Solution

The fourth proportional to 2,809.47, 3,877.53 and 1,852.05 is: 2,556.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,809.47 : 3,877.53 = 1,852.05 : x
  2. Step 2: Convert to fraction form
    2,809.47/3,877.53 = 1,852.05/x
  3. Step 3: Cross multiply
    2,809.47x = 3,877.53 × 1,852.05
  4. Step 4: Simplify right side
    2,809.47x = 7,181,379.44
  5. Step 5: Solve for x
    x = 7,181,379.44/2,809.47
  6. Step 6: Final answer
    x = 2,556.13

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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.