Home / 2,820.02-4,234.90-1,730.78

Finding the Fourth Proportional to 2,820.02, 4,234.90 and 1,730.78

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Solution

The fourth proportional to 2,820.02, 4,234.90 and 1,730.78 is: 2,599.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,820.02 : 4,234.90 = 1,730.78 : x
  2. Step 2: Convert to fraction form
    2,820.02/4,234.90 = 1,730.78/x
  3. Step 3: Cross multiply
    2,820.02x = 4,234.90 × 1,730.78
  4. Step 4: Simplify right side
    2,820.02x = 7,329,680.22
  5. Step 5: Solve for x
    x = 7,329,680.22/2,820.02
  6. Step 6: Final answer
    x = 2,599.16

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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.