Home / 3,125.77-4,687.09-933.91

Finding the Fourth Proportional to 3,125.77, 4,687.09 and 933.91

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Solution

The fourth proportional to 3,125.77, 4,687.09 and 933.91 is: 1,400.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,125.77 : 4,687.09 = 933.91 : x
  2. Step 2: Convert to fraction form
    3,125.77/4,687.09 = 933.91/x
  3. Step 3: Cross multiply
    3,125.77x = 4,687.09 × 933.91
  4. Step 4: Simplify right side
    3,125.77x = 4,377,320.22
  5. Step 5: Solve for x
    x = 4,377,320.22/3,125.77
  6. Step 6: Final answer
    x = 1,400.40

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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.