Home / 2,158.50-3,235.70-1,376.30

Finding the Fourth Proportional to 2,158.50, 3,235.70 and 1,376.30

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Solution

The fourth proportional to 2,158.50, 3,235.70 and 1,376.30 is: 2,063.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,158.50 : 3,235.70 = 1,376.30 : x
  2. Step 2: Convert to fraction form
    2,158.50/3,235.70 = 1,376.30/x
  3. Step 3: Cross multiply
    2,158.50x = 3,235.70 × 1,376.30
  4. Step 4: Simplify right side
    2,158.50x = 4,453,295.12
  5. Step 5: Solve for x
    x = 4,453,295.12/2,158.50
  6. Step 6: Final answer
    x = 2,063.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.