Home / 3,148.70-4,721.83-1,040.24

Finding the Fourth Proportional to 3,148.70, 4,721.83 and 1,040.24

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Solution

The fourth proportional to 3,148.70, 4,721.83 and 1,040.24 is: 1,559.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,148.70 : 4,721.83 = 1,040.24 : x
  2. Step 2: Convert to fraction form
    3,148.70/4,721.83 = 1,040.24/x
  3. Step 3: Cross multiply
    3,148.70x = 4,721.83 × 1,040.24
  4. Step 4: Simplify right side
    3,148.70x = 4,911,845.64
  5. Step 5: Solve for x
    x = 4,911,845.64/3,148.70
  6. Step 6: Final answer
    x = 1,559.96

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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.