Home / 3,140.87-4,329.77-2,393.53

Finding the Fourth Proportional to 3,140.87, 4,329.77 and 2,393.53

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Solution

The fourth proportional to 3,140.87, 4,329.77 and 2,393.53 is: 3,299.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,140.87 : 4,329.77 = 2,393.53 : x
  2. Step 2: Convert to fraction form
    3,140.87/4,329.77 = 2,393.53/x
  3. Step 3: Cross multiply
    3,140.87x = 4,329.77 × 2,393.53
  4. Step 4: Simplify right side
    3,140.87x = 10,363,411.60
  5. Step 5: Solve for x
    x = 10,363,411.60/3,140.87
  6. Step 6: Final answer
    x = 3,299.54

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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.