Home / 5,398.69-8,090.74-2,803.45

Finding the Fourth Proportional to 5,398.69, 8,090.74 and 2,803.45

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Solution

The fourth proportional to 5,398.69, 8,090.74 and 2,803.45 is: 4,201.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,398.69 : 8,090.74 = 2,803.45 : x
  2. Step 2: Convert to fraction form
    5,398.69/8,090.74 = 2,803.45/x
  3. Step 3: Cross multiply
    5,398.69x = 8,090.74 × 2,803.45
  4. Step 4: Simplify right side
    5,398.69x = 22,681,985.05
  5. Step 5: Solve for x
    x = 22,681,985.05/5,398.69
  6. Step 6: Final answer
    x = 4,201.39

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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.