Home / 4,391.51-6,588.44-1,271.78

Finding the Fourth Proportional to 4,391.51, 6,588.44 and 1,271.78

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Solution

The fourth proportional to 4,391.51, 6,588.44 and 1,271.78 is: 1,908.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,391.51 : 6,588.44 = 1,271.78 : x
  2. Step 2: Convert to fraction form
    4,391.51/6,588.44 = 1,271.78/x
  3. Step 3: Cross multiply
    4,391.51x = 6,588.44 × 1,271.78
  4. Step 4: Simplify right side
    4,391.51x = 8,379,006.92
  5. Step 5: Solve for x
    x = 8,379,006.92/4,391.51
  6. Step 6: Final answer
    x = 1,908.00

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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.