Home / 3,075.85-4,611.04-1,127.60

Finding the Fourth Proportional to 3,075.85, 4,611.04 and 1,127.60

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Solution

The fourth proportional to 3,075.85, 4,611.04 and 1,127.60 is: 1,690.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,075.85 : 4,611.04 = 1,127.60 : x
  2. Step 2: Convert to fraction form
    3,075.85/4,611.04 = 1,127.60/x
  3. Step 3: Cross multiply
    3,075.85x = 4,611.04 × 1,127.60
  4. Step 4: Simplify right side
    3,075.85x = 5,199,406.46
  5. Step 5: Solve for x
    x = 5,199,406.46/3,075.85
  6. Step 6: Final answer
    x = 1,690.40

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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.