Home / 2,881.70-4,315.62-1,645.36

Finding the Fourth Proportional to 2,881.70, 4,315.62 and 1,645.36

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Solution

The fourth proportional to 2,881.70, 4,315.62 and 1,645.36 is: 2,464.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,881.70 : 4,315.62 = 1,645.36 : x
  2. Step 2: Convert to fraction form
    2,881.70/4,315.62 = 1,645.36/x
  3. Step 3: Cross multiply
    2,881.70x = 4,315.62 × 1,645.36
  4. Step 4: Simplify right side
    2,881.70x = 7,100,729.51
  5. Step 5: Solve for x
    x = 7,100,729.51/2,881.70
  6. Step 6: Final answer
    x = 2,464.08

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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.