Home / 5,645.79-8,459.33-1,945.98

Finding the Fourth Proportional to 5,645.79, 8,459.33 and 1,945.98

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Solution

The fourth proportional to 5,645.79, 8,459.33 and 1,945.98 is: 2,915.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,645.79 : 8,459.33 = 1,945.98 : x
  2. Step 2: Convert to fraction form
    5,645.79/8,459.33 = 1,945.98/x
  3. Step 3: Cross multiply
    5,645.79x = 8,459.33 × 1,945.98
  4. Step 4: Simplify right side
    5,645.79x = 16,461,677.26
  5. Step 5: Solve for x
    x = 16,461,677.26/5,645.79
  6. Step 6: Final answer
    x = 2,915.74

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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.