Home / 2,885.13-3,981.48-1,558.83

Finding the Fourth Proportional to 2,885.13, 3,981.48 and 1,558.83

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Solution

The fourth proportional to 2,885.13, 3,981.48 and 1,558.83 is: 2,151.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,885.13 : 3,981.48 = 1,558.83 : x
  2. Step 2: Convert to fraction form
    2,885.13/3,981.48 = 1,558.83/x
  3. Step 3: Cross multiply
    2,885.13x = 3,981.48 × 1,558.83
  4. Step 4: Simplify right side
    2,885.13x = 6,206,450.47
  5. Step 5: Solve for x
    x = 6,206,450.47/2,885.13
  6. Step 6: Final answer
    x = 2,151.19

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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.