Home / 3,520.10-5,280.82-1,054.86

Finding the Fourth Proportional to 3,520.10, 5,280.82 and 1,054.86

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Solution

The fourth proportional to 3,520.10, 5,280.82 and 1,054.86 is: 1,582.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,520.10 : 5,280.82 = 1,054.86 : x
  2. Step 2: Convert to fraction form
    3,520.10/5,280.82 = 1,054.86/x
  3. Step 3: Cross multiply
    3,520.10x = 5,280.82 × 1,054.86
  4. Step 4: Simplify right side
    3,520.10x = 5,570,525.79
  5. Step 5: Solve for x
    x = 5,570,525.79/3,520.10
  6. Step 6: Final answer
    x = 1,582.49

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Double scale
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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.