Home / 3,140.70-4,329.52-2,393.35

Finding the Fourth Proportional to 3,140.70, 4,329.52 and 2,393.35

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Solution

The fourth proportional to 3,140.70, 4,329.52 and 2,393.35 is: 3,299.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,140.70 : 4,329.52 = 2,393.35 : x
  2. Step 2: Convert to fraction form
    3,140.70/4,329.52 = 2,393.35/x
  3. Step 3: Cross multiply
    3,140.70x = 4,329.52 × 2,393.35
  4. Step 4: Simplify right side
    3,140.70x = 10,362,056.69
  5. Step 5: Solve for x
    x = 10,362,056.69/3,140.70
  6. Step 6: Final answer
    x = 3,299.28

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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.