Home / 3,245.40-4,475.72-2,125.93

Finding the Fourth Proportional to 3,245.40, 4,475.72 and 2,125.93

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Solution

The fourth proportional to 3,245.40, 4,475.72 and 2,125.93 is: 2,931.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,245.40 : 4,475.72 = 2,125.93 : x
  2. Step 2: Convert to fraction form
    3,245.40/4,475.72 = 2,125.93/x
  3. Step 3: Cross multiply
    3,245.40x = 4,475.72 × 2,125.93
  4. Step 4: Simplify right side
    3,245.40x = 9,515,074.76
  5. Step 5: Solve for x
    x = 9,515,074.76/3,245.40
  6. Step 6: Final answer
    x = 2,931.86

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1.5x scale

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.