Home / 2,455.21-3,686.92-2,047.58

Finding the Fourth Proportional to 2,455.21, 3,686.92 and 2,047.58

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Solution

The fourth proportional to 2,455.21, 3,686.92 and 2,047.58 is: 3,074.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,455.21 : 3,686.92 = 2,047.58 : x
  2. Step 2: Convert to fraction form
    2,455.21/3,686.92 = 2,047.58/x
  3. Step 3: Cross multiply
    2,455.21x = 3,686.92 × 2,047.58
  4. Step 4: Simplify right side
    2,455.21x = 7,549,253.93
  5. Step 5: Solve for x
    x = 7,549,253.93/2,455.21
  6. Step 6: Final answer
    x = 3,074.79

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1.5x scale

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.