Home / 5,390.00-8,084.99-2,459.60

Finding the Fourth Proportional to 5,390.00, 8,084.99 and 2,459.60

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Solution

The fourth proportional to 5,390.00, 8,084.99 and 2,459.60 is: 3,689.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,390.00 : 8,084.99 = 2,459.60 : x
  2. Step 2: Convert to fraction form
    5,390.00/8,084.99 = 2,459.60/x
  3. Step 3: Cross multiply
    5,390.00x = 8,084.99 × 2,459.60
  4. Step 4: Simplify right side
    5,390.00x = 19,885,807.13
  5. Step 5: Solve for x
    x = 19,885,807.13/5,390.00
  6. Step 6: Final answer
    x = 3,689.39

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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.