Home / 2,405.07-3,319.16-1,520.55

Finding the Fourth Proportional to 2,405.07, 3,319.16 and 1,520.55

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Solution

The fourth proportional to 2,405.07, 3,319.16 and 1,520.55 is: 2,098.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,405.07 : 3,319.16 = 1,520.55 : x
  2. Step 2: Convert to fraction form
    2,405.07/3,319.16 = 1,520.55/x
  3. Step 3: Cross multiply
    2,405.07x = 3,319.16 × 1,520.55
  4. Step 4: Simplify right side
    2,405.07x = 5,046,941.14
  5. Step 5: Solve for x
    x = 5,046,941.14/2,405.07
  6. Step 6: Final answer
    x = 2,098.46

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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.