Home / 5,097.21-7,644.99-1,398.58

Finding the Fourth Proportional to 5,097.21, 7,644.99 and 1,398.58

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Solution

The fourth proportional to 5,097.21, 7,644.99 and 1,398.58 is: 2,097.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,097.21 : 7,644.99 = 1,398.58 : x
  2. Step 2: Convert to fraction form
    5,097.21/7,644.99 = 1,398.58/x
  3. Step 3: Cross multiply
    5,097.21x = 7,644.99 × 1,398.58
  4. Step 4: Simplify right side
    5,097.21x = 10,692,130.11
  5. Step 5: Solve for x
    x = 10,692,130.11/5,097.21
  6. Step 6: Final answer
    x = 2,097.64

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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.