Home / 3,140.03-4,710.05-1,289.85

Finding the Fourth Proportional to 3,140.03, 4,710.05 and 1,289.85

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Solution

The fourth proportional to 3,140.03, 4,710.05 and 1,289.85 is: 1,934.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,140.03 : 4,710.05 = 1,289.85 : x
  2. Step 2: Convert to fraction form
    3,140.03/4,710.05 = 1,289.85/x
  3. Step 3: Cross multiply
    3,140.03x = 4,710.05 × 1,289.85
  4. Step 4: Simplify right side
    3,140.03x = 6,075,251.54
  5. Step 5: Solve for x
    x = 6,075,251.54/3,140.03
  6. Step 6: Final answer
    x = 1,934.77

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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.