Home / 1,861.03-2,586.03-1,840.78

Finding the Fourth Proportional to 1,861.03, 2,586.03 and 1,840.78

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Solution

The fourth proportional to 1,861.03, 2,586.03 and 1,840.78 is: 2,557.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,861.03 : 2,586.03 = 1,840.78 : x
  2. Step 2: Convert to fraction form
    1,861.03/2,586.03 = 1,840.78/x
  3. Step 3: Cross multiply
    1,861.03x = 2,586.03 × 1,840.78
  4. Step 4: Simplify right side
    1,861.03x = 4,760,312.30
  5. Step 5: Solve for x
    x = 4,760,312.30/1,861.03
  6. Step 6: Final answer
    x = 2,557.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.