Home / 3,112.99-4,661.74-1,810.51

Finding the Fourth Proportional to 3,112.99, 4,661.74 and 1,810.51

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Solution

The fourth proportional to 3,112.99, 4,661.74 and 1,810.51 is: 2,711.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112.99 : 4,661.74 = 1,810.51 : x
  2. Step 2: Convert to fraction form
    3,112.99/4,661.74 = 1,810.51/x
  3. Step 3: Cross multiply
    3,112.99x = 4,661.74 × 1,810.51
  4. Step 4: Simplify right side
    3,112.99x = 8,440,126.89
  5. Step 5: Solve for x
    x = 8,440,126.89/3,112.99
  6. Step 6: Final answer
    x = 2,711.26

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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.