Home / 2,907.77-4,011.44-1,728.59

Finding the Fourth Proportional to 2,907.77, 4,011.44 and 1,728.59

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Solution

The fourth proportional to 2,907.77, 4,011.44 and 1,728.59 is: 2,384.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,907.77 : 4,011.44 = 1,728.59 : x
  2. Step 2: Convert to fraction form
    2,907.77/4,011.44 = 1,728.59/x
  3. Step 3: Cross multiply
    2,907.77x = 4,011.44 × 1,728.59
  4. Step 4: Simplify right side
    2,907.77x = 6,934,106.37
  5. Step 5: Solve for x
    x = 6,934,106.37/2,907.77
  6. Step 6: Final answer
    x = 2,384.69

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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.