Home / 1,820.11-2,511.17-1,074.32

Finding the Fourth Proportional to 1,820.11, 2,511.17 and 1,074.32

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Solution

The fourth proportional to 1,820.11, 2,511.17 and 1,074.32 is: 1,482.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,820.11 : 2,511.17 = 1,074.32 : x
  2. Step 2: Convert to fraction form
    1,820.11/2,511.17 = 1,074.32/x
  3. Step 3: Cross multiply
    1,820.11x = 2,511.17 × 1,074.32
  4. Step 4: Simplify right side
    1,820.11x = 2,697,788.50
  5. Step 5: Solve for x
    x = 2,697,788.50/1,820.11
  6. Step 6: Final answer
    x = 1,482.21

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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.