Home / 2,269.14-3,130.50-1,429.56

Finding the Fourth Proportional to 2,269.14, 3,130.50 and 1,429.56

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Solution

The fourth proportional to 2,269.14, 3,130.50 and 1,429.56 is: 1,972.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,269.14 : 3,130.50 = 1,429.56 : x
  2. Step 2: Convert to fraction form
    2,269.14/3,130.50 = 1,429.56/x
  3. Step 3: Cross multiply
    2,269.14x = 3,130.50 × 1,429.56
  4. Step 4: Simplify right side
    2,269.14x = 4,475,237.58
  5. Step 5: Solve for x
    x = 4,475,237.58/2,269.14
  6. Step 6: Final answer
    x = 1,972.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.