Home / 3,431.05-4,730.67-2,898.98

Finding the Fourth Proportional to 3,431.05, 4,730.67 and 2,898.98

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Solution

The fourth proportional to 3,431.05, 4,730.67 and 2,898.98 is: 3,997.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,431.05 : 4,730.67 = 2,898.98 : x
  2. Step 2: Convert to fraction form
    3,431.05/4,730.67 = 2,898.98/x
  3. Step 3: Cross multiply
    3,431.05x = 4,730.67 × 2,898.98
  4. Step 4: Simplify right side
    3,431.05x = 13,714,117.72
  5. Step 5: Solve for x
    x = 13,714,117.72/3,431.05
  6. Step 6: Final answer
    x = 3,997.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.