Home / 4,748.21-7,122.30-1,827.20

Finding the Fourth Proportional to 4,748.21, 7,122.30 and 1,827.20

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Solution

The fourth proportional to 4,748.21, 7,122.30 and 1,827.20 is: 2,740.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,748.21 : 7,122.30 = 1,827.20 : x
  2. Step 2: Convert to fraction form
    4,748.21/7,122.30 = 1,827.20/x
  3. Step 3: Cross multiply
    4,748.21x = 7,122.30 × 1,827.20
  4. Step 4: Simplify right side
    4,748.21x = 13,013,830.95
  5. Step 5: Solve for x
    x = 13,013,830.95/4,748.21
  6. Step 6: Final answer
    x = 2,740.79

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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.