Home / 2,790.84-4,182.57-1,557.66

Finding the Fourth Proportional to 2,790.84, 4,182.57 and 1,557.66

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Solution

The fourth proportional to 2,790.84, 4,182.57 and 1,557.66 is: 2,334.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,790.84 : 4,182.57 = 1,557.66 : x
  2. Step 2: Convert to fraction form
    2,790.84/4,182.57 = 1,557.66/x
  3. Step 3: Cross multiply
    2,790.84x = 4,182.57 × 1,557.66
  4. Step 4: Simplify right side
    2,790.84x = 6,515,021.99
  5. Step 5: Solve for x
    x = 6,515,021.99/2,790.84
  6. Step 6: Final answer
    x = 2,334.43

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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.