Home / 1,861.07-2,568.39-1,075.17

Finding the Fourth Proportional to 1,861.07, 2,568.39 and 1,075.17

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Solution

The fourth proportional to 1,861.07, 2,568.39 and 1,075.17 is: 1,483.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,861.07 : 2,568.39 = 1,075.17 : x
  2. Step 2: Convert to fraction form
    1,861.07/2,568.39 = 1,075.17/x
  3. Step 3: Cross multiply
    1,861.07x = 2,568.39 × 1,075.17
  4. Step 4: Simplify right side
    1,861.07x = 2,761,455.88
  5. Step 5: Solve for x
    x = 2,761,455.88/1,861.07
  6. Step 6: Final answer
    x = 1,483.80

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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.