Home / 3,928.85-5,894.90-1,590.51

Finding the Fourth Proportional to 3,928.85, 5,894.90 and 1,590.51

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Solution

The fourth proportional to 3,928.85, 5,894.90 and 1,590.51 is: 2,386.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,928.85 : 5,894.90 = 1,590.51 : x
  2. Step 2: Convert to fraction form
    3,928.85/5,894.90 = 1,590.51/x
  3. Step 3: Cross multiply
    3,928.85x = 5,894.90 × 1,590.51
  4. Step 4: Simplify right side
    3,928.85x = 9,375,889.45
  5. Step 5: Solve for x
    x = 9,375,889.45/3,928.85
  6. Step 6: Final answer
    x = 2,386.42

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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.