Home / 2,180.21-3,008.88-1,341.45

Finding the Fourth Proportional to 2,180.21, 3,008.88 and 1,341.45

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Solution

The fourth proportional to 2,180.21, 3,008.88 and 1,341.45 is: 1,851.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,180.21 : 3,008.88 = 1,341.45 : x
  2. Step 2: Convert to fraction form
    2,180.21/3,008.88 = 1,341.45/x
  3. Step 3: Cross multiply
    2,180.21x = 3,008.88 × 1,341.45
  4. Step 4: Simplify right side
    2,180.21x = 4,036,262.08
  5. Step 5: Solve for x
    x = 4,036,262.08/2,180.21
  6. Step 6: Final answer
    x = 1,851.32

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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.