Home / 3,153.21-4,729.80-1,303.80

Finding the Fourth Proportional to 3,153.21, 4,729.80 and 1,303.80

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Solution

The fourth proportional to 3,153.21, 4,729.80 and 1,303.80 is: 1,955.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,153.21 : 4,729.80 = 1,303.80 : x
  2. Step 2: Convert to fraction form
    3,153.21/4,729.80 = 1,303.80/x
  3. Step 3: Cross multiply
    3,153.21x = 4,729.80 × 1,303.80
  4. Step 4: Simplify right side
    3,153.21x = 6,166,713.24
  5. Step 5: Solve for x
    x = 6,166,713.24/3,153.21
  6. Step 6: Final answer
    x = 1,955.69

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1.5x scale

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.