Home / 3,180.53-4,390.30-2,393.21

Finding the Fourth Proportional to 3,180.53, 4,390.30 and 2,393.21

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Solution

The fourth proportional to 3,180.53, 4,390.30 and 2,393.21 is: 3,303.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,180.53 : 4,390.30 = 2,393.21 : x
  2. Step 2: Convert to fraction form
    3,180.53/4,390.30 = 2,393.21/x
  3. Step 3: Cross multiply
    3,180.53x = 4,390.30 × 2,393.21
  4. Step 4: Simplify right side
    3,180.53x = 10,506,923.83
  5. Step 5: Solve for x
    x = 10,506,923.83/3,180.53
  6. Step 6: Final answer
    x = 3,303.51

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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.