Home / 5,148.90-7,103.70-3,053.70

Finding the Fourth Proportional to 5,148.90, 7,103.70 and 3,053.70

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Solution

The fourth proportional to 5,148.90, 7,103.70 and 3,053.70 is: 4,213.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,148.90 : 7,103.70 = 3,053.70 : x
  2. Step 2: Convert to fraction form
    5,148.90/7,103.70 = 3,053.70/x
  3. Step 3: Cross multiply
    5,148.90x = 7,103.70 × 3,053.70
  4. Step 4: Simplify right side
    5,148.90x = 21,692,568.69
  5. Step 5: Solve for x
    x = 21,692,568.69/5,148.90
  6. Step 6: Final answer
    x = 4,213.05

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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.