Home / 3,478.90-5,218.55-1,014.10

Finding the Fourth Proportional to 3,478.90, 5,218.55 and 1,014.10

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Solution

The fourth proportional to 3,478.90, 5,218.55 and 1,014.10 is: 1,521.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,478.90 : 5,218.55 = 1,014.10 : x
  2. Step 2: Convert to fraction form
    3,478.90/5,218.55 = 1,014.10/x
  3. Step 3: Cross multiply
    3,478.90x = 5,218.55 × 1,014.10
  4. Step 4: Simplify right side
    3,478.90x = 5,292,131.56
  5. Step 5: Solve for x
    x = 5,292,131.56/3,478.90
  6. Step 6: Final answer
    x = 1,521.21

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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.