Home / 3,390.84-5,090.58-2,881.08

Finding the Fourth Proportional to 3,390.84, 5,090.58 and 2,881.08

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Solution

The fourth proportional to 3,390.84, 5,090.58 and 2,881.08 is: 4,325.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,390.84 : 5,090.58 = 2,881.08 : x
  2. Step 2: Convert to fraction form
    3,390.84/5,090.58 = 2,881.08/x
  3. Step 3: Cross multiply
    3,390.84x = 5,090.58 × 2,881.08
  4. Step 4: Simplify right side
    3,390.84x = 14,666,368.23
  5. Step 5: Solve for x
    x = 14,666,368.23/3,390.84
  6. Step 6: Final answer
    x = 4,325.29

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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.