Home / 5,480.36-8,220.65-1,782.58

Finding the Fourth Proportional to 5,480.36, 8,220.65 and 1,782.58

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Solution

The fourth proportional to 5,480.36, 8,220.65 and 1,782.58 is: 2,673.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,480.36 : 8,220.65 = 1,782.58 : x
  2. Step 2: Convert to fraction form
    5,480.36/8,220.65 = 1,782.58/x
  3. Step 3: Cross multiply
    5,480.36x = 8,220.65 × 1,782.58
  4. Step 4: Simplify right side
    5,480.36x = 14,653,966.28
  5. Step 5: Solve for x
    x = 14,653,966.28/5,480.36
  6. Step 6: Final answer
    x = 2,673.91

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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.