Home / 2,772.34-4,145.88-2,070.05

Finding the Fourth Proportional to 2,772.34, 4,145.88 and 2,070.05

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Solution

The fourth proportional to 2,772.34, 4,145.88 and 2,070.05 is: 3,095.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,772.34 : 4,145.88 = 2,070.05 : x
  2. Step 2: Convert to fraction form
    2,772.34/4,145.88 = 2,070.05/x
  3. Step 3: Cross multiply
    2,772.34x = 4,145.88 × 2,070.05
  4. Step 4: Simplify right side
    2,772.34x = 8,582,178.89
  5. Step 5: Solve for x
    x = 8,582,178.89/2,772.34
  6. Step 6: Final answer
    x = 3,095.64

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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.