Home / 3,090.86-4,636.74-1,010.20

Finding the Fourth Proportional to 3,090.86, 4,636.74 and 1,010.20

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Solution

The fourth proportional to 3,090.86, 4,636.74 and 1,010.20 is: 1,515.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,090.86 : 4,636.74 = 1,010.20 : x
  2. Step 2: Convert to fraction form
    3,090.86/4,636.74 = 1,010.20/x
  3. Step 3: Cross multiply
    3,090.86x = 4,636.74 × 1,010.20
  4. Step 4: Simplify right side
    3,090.86x = 4,684,034.75
  5. Step 5: Solve for x
    x = 4,684,034.75/3,090.86
  6. Step 6: Final answer
    x = 1,515.45

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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.