Home / 4,051.32-6,075.88-1,129.78

Finding the Fourth Proportional to 4,051.32, 6,075.88 and 1,129.78

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Solution

The fourth proportional to 4,051.32, 6,075.88 and 1,129.78 is: 1,694.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,051.32 : 6,075.88 = 1,129.78 : x
  2. Step 2: Convert to fraction form
    4,051.32/6,075.88 = 1,129.78/x
  3. Step 3: Cross multiply
    4,051.32x = 6,075.88 × 1,129.78
  4. Step 4: Simplify right side
    4,051.32x = 6,864,407.71
  5. Step 5: Solve for x
    x = 6,864,407.71/4,051.32
  6. Step 6: Final answer
    x = 1,694.36

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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.