Home / 4,128.53-5,698.89-3,015.20

Finding the Fourth Proportional to 4,128.53, 5,698.89 and 3,015.20

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Solution

The fourth proportional to 4,128.53, 5,698.89 and 3,015.20 is: 4,162.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,128.53 : 5,698.89 = 3,015.20 : x
  2. Step 2: Convert to fraction form
    4,128.53/5,698.89 = 3,015.20/x
  3. Step 3: Cross multiply
    4,128.53x = 5,698.89 × 3,015.20
  4. Step 4: Simplify right side
    4,128.53x = 17,183,264.63
  5. Step 5: Solve for x
    x = 17,183,264.63/4,128.53
  6. Step 6: Final answer
    x = 4,162.08

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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.