Home / 3,810.19-5,259.86-2,866.34

Finding the Fourth Proportional to 3,810.19, 5,259.86 and 2,866.34

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Solution

The fourth proportional to 3,810.19, 5,259.86 and 2,866.34 is: 3,956.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,810.19 : 5,259.86 = 2,866.34 : x
  2. Step 2: Convert to fraction form
    3,810.19/5,259.86 = 2,866.34/x
  3. Step 3: Cross multiply
    3,810.19x = 5,259.86 × 2,866.34
  4. Step 4: Simplify right side
    3,810.19x = 15,076,583.06
  5. Step 5: Solve for x
    x = 15,076,583.06/3,810.19
  6. Step 6: Final answer
    x = 3,956.91

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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.