Home / 3,123.18-4,310.00-1,706.90

Finding the Fourth Proportional to 3,123.18, 4,310.00 and 1,706.90

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Solution

The fourth proportional to 3,123.18, 4,310.00 and 1,706.90 is: 2,355.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,123.18 : 4,310.00 = 1,706.90 : x
  2. Step 2: Convert to fraction form
    3,123.18/4,310.00 = 1,706.90/x
  3. Step 3: Cross multiply
    3,123.18x = 4,310.00 × 1,706.90
  4. Step 4: Simplify right side
    3,123.18x = 7,356,721.72
  5. Step 5: Solve for x
    x = 7,356,721.72/3,123.18
  6. Step 6: Final answer
    x = 2,355.52

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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.