Home / 3,429.70-4,732.95-1,857.78

Finding the Fourth Proportional to 3,429.70, 4,732.95 and 1,857.78

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Solution

The fourth proportional to 3,429.70, 4,732.95 and 1,857.78 is: 2,563.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,429.70 : 4,732.95 = 1,857.78 : x
  2. Step 2: Convert to fraction form
    3,429.70/4,732.95 = 1,857.78/x
  3. Step 3: Cross multiply
    3,429.70x = 4,732.95 × 1,857.78
  4. Step 4: Simplify right side
    3,429.70x = 8,792,779.85
  5. Step 5: Solve for x
    x = 8,792,779.85/3,429.70
  6. Step 6: Final answer
    x = 2,563.72

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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.