Home / 1,861.39-2,568.72-1,075.44

Finding the Fourth Proportional to 1,861.39, 2,568.72 and 1,075.44

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Solution

The fourth proportional to 1,861.39, 2,568.72 and 1,075.44 is: 1,484.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,861.39 : 2,568.72 = 1,075.44 : x
  2. Step 2: Convert to fraction form
    1,861.39/2,568.72 = 1,075.44/x
  3. Step 3: Cross multiply
    1,861.39x = 2,568.72 × 1,075.44
  4. Step 4: Simplify right side
    1,861.39x = 2,762,504.24
  5. Step 5: Solve for x
    x = 2,762,504.24/1,861.39
  6. Step 6: Final answer
    x = 1,484.11

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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.