Home / 2,740.21-4,090.40-2,537.17

Finding the Fourth Proportional to 2,740.21, 4,090.40 and 2,537.17

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Solution

The fourth proportional to 2,740.21, 4,090.40 and 2,537.17 is: 3,787.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,740.21 : 4,090.40 = 2,537.17 : x
  2. Step 2: Convert to fraction form
    2,740.21/4,090.40 = 2,537.17/x
  3. Step 3: Cross multiply
    2,740.21x = 4,090.40 × 2,537.17
  4. Step 4: Simplify right side
    2,740.21x = 10,378,040.17
  5. Step 5: Solve for x
    x = 10,378,040.17/2,740.21
  6. Step 6: Final answer
    x = 3,787.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.