Home / 1,820.46-2,509.69-1,539.56

Finding the Fourth Proportional to 1,820.46, 2,509.69 and 1,539.56

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Solution

The fourth proportional to 1,820.46, 2,509.69 and 1,539.56 is: 2,122.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,820.46 : 2,509.69 = 1,539.56 : x
  2. Step 2: Convert to fraction form
    1,820.46/2,509.69 = 1,539.56/x
  3. Step 3: Cross multiply
    1,820.46x = 2,509.69 × 1,539.56
  4. Step 4: Simplify right side
    1,820.46x = 3,863,810.64
  5. Step 5: Solve for x
    x = 3,863,810.64/1,820.46
  6. Step 6: Final answer
    x = 2,122.44

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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.