Home / 5,105.02-7,657.60-1,407.22

Finding the Fourth Proportional to 5,105.02, 7,657.60 and 1,407.22

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Solution

The fourth proportional to 5,105.02, 7,657.60 and 1,407.22 is: 2,110.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,105.02 : 7,657.60 = 1,407.22 : x
  2. Step 2: Convert to fraction form
    5,105.02/7,657.60 = 1,407.22/x
  3. Step 3: Cross multiply
    5,105.02x = 7,657.60 × 1,407.22
  4. Step 4: Simplify right side
    5,105.02x = 10,775,927.87
  5. Step 5: Solve for x
    x = 10,775,927.87/5,105.02
  6. Step 6: Final answer
    x = 2,110.85

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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.