Home / 2,085.21-2,877.87-1,341.33

Finding the Fourth Proportional to 2,085.21, 2,877.87 and 1,341.33

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Solution

The fourth proportional to 2,085.21, 2,877.87 and 1,341.33 is: 1,851.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,085.21 : 2,877.87 = 1,341.33 : x
  2. Step 2: Convert to fraction form
    2,085.21/2,877.87 = 1,341.33/x
  3. Step 3: Cross multiply
    2,085.21x = 2,877.87 × 1,341.33
  4. Step 4: Simplify right side
    2,085.21x = 3,860,166.66
  5. Step 5: Solve for x
    x = 3,860,166.66/2,085.21
  6. Step 6: Final answer
    x = 1,851.21

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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.