Home / 5,625.36-8,438.40-3,312

Finding the Fourth Proportional to 5,625.36, 8,438.40 and 3,312

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Solution

The fourth proportional to 5,625.36, 8,438.40 and 3,312 is: 4,968.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,625.36 : 8,438.40 = 3,312 : x
  2. Step 2: Convert to fraction form
    5,625.36/8,438.40 = 3,312/x
  3. Step 3: Cross multiply
    5,625.36x = 8,438.40 × 3,312
  4. Step 4: Simplify right side
    5,625.36x = 27,947,980.80
  5. Step 5: Solve for x
    x = 27,947,980.80/5,625.36
  6. Step 6: Final answer
    x = 4,968.21

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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.