Home / 1,639.89-2,459.34-544.01

Finding the Fourth Proportional to 1,639.89, 2,459.34 and 544.01

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Solution

The fourth proportional to 1,639.89, 2,459.34 and 544.01 is: 815.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,639.89 : 2,459.34 = 544.01 : x
  2. Step 2: Convert to fraction form
    1,639.89/2,459.34 = 544.01/x
  3. Step 3: Cross multiply
    1,639.89x = 2,459.34 × 544.01
  4. Step 4: Simplify right side
    1,639.89x = 1,337,893.26
  5. Step 5: Solve for x
    x = 1,337,893.26/1,639.89
  6. Step 6: Final answer
    x = 815.84

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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.