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Finding the Fourth Proportional to 3,090.03, 4,263.08 and 1,971.02

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Solution

The fourth proportional to 3,090.03, 4,263.08 and 1,971.02 is: 2,719.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,090.03 : 4,263.08 = 1,971.02 : x
  2. Step 2: Convert to fraction form
    3,090.03/4,263.08 = 1,971.02/x
  3. Step 3: Cross multiply
    3,090.03x = 4,263.08 × 1,971.02
  4. Step 4: Simplify right side
    3,090.03x = 8,402,584.77
  5. Step 5: Solve for x
    x = 8,402,584.77/3,090.03
  6. Step 6: Final answer
    x = 2,719.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.