Home / 2,790.04-3,849.99-1,670.77

Finding the Fourth Proportional to 2,790.04, 3,849.99 and 1,670.77

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Solution

The fourth proportional to 2,790.04, 3,849.99 and 1,670.77 is: 2,305.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,790.04 : 3,849.99 = 1,670.77 : x
  2. Step 2: Convert to fraction form
    2,790.04/3,849.99 = 1,670.77/x
  3. Step 3: Cross multiply
    2,790.04x = 3,849.99 × 1,670.77
  4. Step 4: Simplify right side
    2,790.04x = 6,432,447.79
  5. Step 5: Solve for x
    x = 6,432,447.79/2,790.04
  6. Step 6: Final answer
    x = 2,305.50

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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.