Home / 3,428.02-5,148.30-3,138.85

Finding the Fourth Proportional to 3,428.02, 5,148.30 and 3,138.85

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Solution

The fourth proportional to 3,428.02, 5,148.30 and 3,138.85 is: 4,714.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.02 : 5,148.30 = 3,138.85 : x
  2. Step 2: Convert to fraction form
    3,428.02/5,148.30 = 3,138.85/x
  3. Step 3: Cross multiply
    3,428.02x = 5,148.30 × 3,138.85
  4. Step 4: Simplify right side
    3,428.02x = 16,159,715.71
  5. Step 5: Solve for x
    x = 16,159,715.71/3,428.02
  6. Step 6: Final answer
    x = 4,714.02

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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.