Home / 5,385.78-8,075.36-2,095.04

Finding the Fourth Proportional to 5,385.78, 8,075.36 and 2,095.04

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Solution

The fourth proportional to 5,385.78, 8,075.36 and 2,095.04 is: 3,141.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,385.78 : 8,075.36 = 2,095.04 : x
  2. Step 2: Convert to fraction form
    5,385.78/8,075.36 = 2,095.04/x
  3. Step 3: Cross multiply
    5,385.78x = 8,075.36 × 2,095.04
  4. Step 4: Simplify right side
    5,385.78x = 16,918,151.36
  5. Step 5: Solve for x
    x = 16,918,151.36/5,385.78
  6. Step 6: Final answer
    x = 3,141.27

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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.