Home / 1,340.21-1,848.12-1,310.04

Finding the Fourth Proportional to 1,340.21, 1,848.12 and 1,310.04

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Solution

The fourth proportional to 1,340.21, 1,848.12 and 1,310.04 is: 1,806.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340.21 : 1,848.12 = 1,310.04 : x
  2. Step 2: Convert to fraction form
    1,340.21/1,848.12 = 1,310.04/x
  3. Step 3: Cross multiply
    1,340.21x = 1,848.12 × 1,310.04
  4. Step 4: Simplify right side
    1,340.21x = 2,421,106.21
  5. Step 5: Solve for x
    x = 2,421,106.21/1,340.21
  6. Step 6: Final answer
    x = 1,806.51

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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.