Home / 1,861.75-2,569.07-1,075.85

Finding the Fourth Proportional to 1,861.75, 2,569.07 and 1,075.85

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Solution

The fourth proportional to 1,861.75, 2,569.07 and 1,075.85 is: 1,484.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,861.75 : 2,569.07 = 1,075.85 : x
  2. Step 2: Convert to fraction form
    1,861.75/2,569.07 = 1,075.85/x
  3. Step 3: Cross multiply
    1,861.75x = 2,569.07 × 1,075.85
  4. Step 4: Simplify right side
    1,861.75x = 2,763,927.39
  5. Step 5: Solve for x
    x = 2,763,927.39/1,861.75
  6. Step 6: Final answer
    x = 1,484.58

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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.