Home / 3,113.80-4,669.50-1,061.80

Finding the Fourth Proportional to 3,113.80, 4,669.50 and 1,061.80

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Solution

The fourth proportional to 3,113.80, 4,669.50 and 1,061.80 is: 1,592.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,113.80 : 4,669.50 = 1,061.80 : x
  2. Step 2: Convert to fraction form
    3,113.80/4,669.50 = 1,061.80/x
  3. Step 3: Cross multiply
    3,113.80x = 4,669.50 × 1,061.80
  4. Step 4: Simplify right side
    3,113.80x = 4,958,075.10
  5. Step 5: Solve for x
    x = 4,958,075.10/3,113.80
  6. Step 6: Final answer
    x = 1,592.29

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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.