Home / 5,459.40-8,190.45-1,762.02

Finding the Fourth Proportional to 5,459.40, 8,190.45 and 1,762.02

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Solution

The fourth proportional to 5,459.40, 8,190.45 and 1,762.02 is: 2,643.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,459.40 : 8,190.45 = 1,762.02 : x
  2. Step 2: Convert to fraction form
    5,459.40/8,190.45 = 1,762.02/x
  3. Step 3: Cross multiply
    5,459.40x = 8,190.45 × 1,762.02
  4. Step 4: Simplify right side
    5,459.40x = 14,431,736.71
  5. Step 5: Solve for x
    x = 14,431,736.71/5,459.40
  6. Step 6: Final answer
    x = 2,643.47

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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.