Home / 3,090.60-4,636.08-1,116.54

Finding the Fourth Proportional to 3,090.60, 4,636.08 and 1,116.54

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Solution

The fourth proportional to 3,090.60, 4,636.08 and 1,116.54 is: 1,674.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,090.60 : 4,636.08 = 1,116.54 : x
  2. Step 2: Convert to fraction form
    3,090.60/4,636.08 = 1,116.54/x
  3. Step 3: Cross multiply
    3,090.60x = 4,636.08 × 1,116.54
  4. Step 4: Simplify right side
    3,090.60x = 5,176,368.76
  5. Step 5: Solve for x
    x = 5,176,368.76/3,090.60
  6. Step 6: Final answer
    x = 1,674.88

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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.