Home / 1,873.19-2,586.12-1,665.62

Finding the Fourth Proportional to 1,873.19, 2,586.12 and 1,665.62

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Solution

The fourth proportional to 1,873.19, 2,586.12 and 1,665.62 is: 2,299.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,873.19 : 2,586.12 = 1,665.62 : x
  2. Step 2: Convert to fraction form
    1,873.19/2,586.12 = 1,665.62/x
  3. Step 3: Cross multiply
    1,873.19x = 2,586.12 × 1,665.62
  4. Step 4: Simplify right side
    1,873.19x = 4,307,493.19
  5. Step 5: Solve for x
    x = 4,307,493.19/1,873.19
  6. Step 6: Final answer
    x = 2,299.55

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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.