Home / 1,861.37-2,568.77-1,075.37

Finding the Fourth Proportional to 1,861.37, 2,568.77 and 1,075.37

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Solution

The fourth proportional to 1,861.37, 2,568.77 and 1,075.37 is: 1,484.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,861.37 : 2,568.77 = 1,075.37 : x
  2. Step 2: Convert to fraction form
    1,861.37/2,568.77 = 1,075.37/x
  3. Step 3: Cross multiply
    1,861.37x = 2,568.77 × 1,075.37
  4. Step 4: Simplify right side
    1,861.37x = 2,762,359.97
  5. Step 5: Solve for x
    x = 2,762,359.97/1,861.37
  6. Step 6: Final answer
    x = 1,484.05

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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.