Home / 4,657.08-6,429.72-2,890.56

Finding the Fourth Proportional to 4,657.08, 6,429.72 and 2,890.56

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Solution

The fourth proportional to 4,657.08, 6,429.72 and 2,890.56 is: 3,990.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,657.08 : 6,429.72 = 2,890.56 : x
  2. Step 2: Convert to fraction form
    4,657.08/6,429.72 = 2,890.56/x
  3. Step 3: Cross multiply
    4,657.08x = 6,429.72 × 2,890.56
  4. Step 4: Simplify right side
    4,657.08x = 18,585,491.44
  5. Step 5: Solve for x
    x = 18,585,491.44/4,657.08
  6. Step 6: Final answer
    x = 3,990.80

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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.