Home / 1,907.12-2,856.43-1,615.52

Finding the Fourth Proportional to 1,907.12, 2,856.43 and 1,615.52

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Solution

The fourth proportional to 1,907.12, 2,856.43 and 1,615.52 is: 2,419.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,907.12 : 2,856.43 = 1,615.52 : x
  2. Step 2: Convert to fraction form
    1,907.12/2,856.43 = 1,615.52/x
  3. Step 3: Cross multiply
    1,907.12x = 2,856.43 × 1,615.52
  4. Step 4: Simplify right side
    1,907.12x = 4,614,622.90
  5. Step 5: Solve for x
    x = 4,614,622.90/1,907.12
  6. Step 6: Final answer
    x = 2,419.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.