Home / 3,210.44-4,807.35-2,689.20

Finding the Fourth Proportional to 3,210.44, 4,807.35 and 2,689.20

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Solution

The fourth proportional to 3,210.44, 4,807.35 and 2,689.20 is: 4,026.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,210.44 : 4,807.35 = 2,689.20 : x
  2. Step 2: Convert to fraction form
    3,210.44/4,807.35 = 2,689.20/x
  3. Step 3: Cross multiply
    3,210.44x = 4,807.35 × 2,689.20
  4. Step 4: Simplify right side
    3,210.44x = 12,927,925.62
  5. Step 5: Solve for x
    x = 12,927,925.62/3,210.44
  6. Step 6: Final answer
    x = 4,026.85

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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.