Home / 2,429.21-3,353.45-1,898.86

Finding the Fourth Proportional to 2,429.21, 3,353.45 and 1,898.86

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Solution

The fourth proportional to 2,429.21, 3,353.45 and 1,898.86 is: 2,621.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,429.21 : 3,353.45 = 1,898.86 : x
  2. Step 2: Convert to fraction form
    2,429.21/3,353.45 = 1,898.86/x
  3. Step 3: Cross multiply
    2,429.21x = 3,353.45 × 1,898.86
  4. Step 4: Simplify right side
    2,429.21x = 6,367,722.57
  5. Step 5: Solve for x
    x = 6,367,722.57/2,429.21
  6. Step 6: Final answer
    x = 2,621.32

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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.