Home / 3,075.48-4,613.94-1,128.12

Finding the Fourth Proportional to 3,075.48, 4,613.94 and 1,128.12

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Solution

The fourth proportional to 3,075.48, 4,613.94 and 1,128.12 is: 1,692.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,075.48 : 4,613.94 = 1,128.12 : x
  2. Step 2: Convert to fraction form
    3,075.48/4,613.94 = 1,128.12/x
  3. Step 3: Cross multiply
    3,075.48x = 4,613.94 × 1,128.12
  4. Step 4: Simplify right side
    3,075.48x = 5,205,077.99
  5. Step 5: Solve for x
    x = 5,205,077.99/3,075.48
  6. Step 6: Final answer
    x = 1,692.44

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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.