Home / 3,075.10-4,612.62-1,127.28

Finding the Fourth Proportional to 3,075.10, 4,612.62 and 1,127.28

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Solution

The fourth proportional to 3,075.10, 4,612.62 and 1,127.28 is: 1,690.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,075.10 : 4,612.62 = 1,127.28 : x
  2. Step 2: Convert to fraction form
    3,075.10/4,612.62 = 1,127.28/x
  3. Step 3: Cross multiply
    3,075.10x = 4,612.62 × 1,127.28
  4. Step 4: Simplify right side
    3,075.10x = 5,199,714.27
  5. Step 5: Solve for x
    x = 5,199,714.27/3,075.10
  6. Step 6: Final answer
    x = 1,690.91

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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.