Home / 4,050.76-6,075-1,128.40

Finding the Fourth Proportional to 4,050.76, 6,075 and 1,128.40

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Solution

The fourth proportional to 4,050.76, 6,075 and 1,128.40 is: 1,692.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,050.76 : 6,075 = 1,128.40 : x
  2. Step 2: Convert to fraction form
    4,050.76/6,075 = 1,128.40/x
  3. Step 3: Cross multiply
    4,050.76x = 6,075 × 1,128.40
  4. Step 4: Simplify right side
    4,050.76x = 6,855,030.00
  5. Step 5: Solve for x
    x = 6,855,030.00/4,050.76
  6. Step 6: Final answer
    x = 1,692.28

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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.