Home / 3,520.29-5,280.48-1,055.15

Finding the Fourth Proportional to 3,520.29, 5,280.48 and 1,055.15

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Solution

The fourth proportional to 3,520.29, 5,280.48 and 1,055.15 is: 1,582.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,520.29 : 5,280.48 = 1,055.15 : x
  2. Step 2: Convert to fraction form
    3,520.29/5,280.48 = 1,055.15/x
  3. Step 3: Cross multiply
    3,520.29x = 5,280.48 × 1,055.15
  4. Step 4: Simplify right side
    3,520.29x = 5,571,672.07
  5. Step 5: Solve for x
    x = 5,571,672.07/3,520.29
  6. Step 6: Final answer
    x = 1,582.73

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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.