Home / 2,075.79-3,110.99-841.76

Finding the Fourth Proportional to 2,075.79, 3,110.99 and 841.76

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Solution

The fourth proportional to 2,075.79, 3,110.99 and 841.76 is: 1,261.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,075.79 : 3,110.99 = 841.76 : x
  2. Step 2: Convert to fraction form
    2,075.79/3,110.99 = 841.76/x
  3. Step 3: Cross multiply
    2,075.79x = 3,110.99 × 841.76
  4. Step 4: Simplify right side
    2,075.79x = 2,618,706.94
  5. Step 5: Solve for x
    x = 2,618,706.94/2,075.79
  6. Step 6: Final answer
    x = 1,261.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.