Home / 3,070.72-4,608.48-1,124.80

Finding the Fourth Proportional to 3,070.72, 4,608.48 and 1,124.80

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Solution

The fourth proportional to 3,070.72, 4,608.48 and 1,124.80 is: 1,688.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,070.72 : 4,608.48 = 1,124.80 : x
  2. Step 2: Convert to fraction form
    3,070.72/4,608.48 = 1,124.80/x
  3. Step 3: Cross multiply
    3,070.72x = 4,608.48 × 1,124.80
  4. Step 4: Simplify right side
    3,070.72x = 5,183,618.30
  5. Step 5: Solve for x
    x = 5,183,618.30/3,070.72
  6. Step 6: Final answer
    x = 1,688.08

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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.