Home / 3,480.29-5,220.55-1,259.58

Finding the Fourth Proportional to 3,480.29, 5,220.55 and 1,259.58

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Solution

The fourth proportional to 3,480.29, 5,220.55 and 1,259.58 is: 1,889.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,480.29 : 5,220.55 = 1,259.58 : x
  2. Step 2: Convert to fraction form
    3,480.29/5,220.55 = 1,259.58/x
  3. Step 3: Cross multiply
    3,480.29x = 5,220.55 × 1,259.58
  4. Step 4: Simplify right side
    3,480.29x = 6,575,677.47
  5. Step 5: Solve for x
    x = 6,575,677.47/3,480.29
  6. Step 6: Final answer
    x = 1,889.40

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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.