Home / 1,581.45-2,369.33-931.83

Finding the Fourth Proportional to 1,581.45, 2,369.33 and 931.83

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Solution

The fourth proportional to 1,581.45, 2,369.33 and 931.83 is: 1,396.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,581.45 : 2,369.33 = 931.83 : x
  2. Step 2: Convert to fraction form
    1,581.45/2,369.33 = 931.83/x
  3. Step 3: Cross multiply
    1,581.45x = 2,369.33 × 931.83
  4. Step 4: Simplify right side
    1,581.45x = 2,207,812.77
  5. Step 5: Solve for x
    x = 2,207,812.77/1,581.45
  6. Step 6: Final answer
    x = 1,396.07

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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.