Home / 3,438.50-4,745.51-2,877.98

Finding the Fourth Proportional to 3,438.50, 4,745.51 and 2,877.98

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Solution

The fourth proportional to 3,438.50, 4,745.51 and 2,877.98 is: 3,971.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,438.50 : 4,745.51 = 2,877.98 : x
  2. Step 2: Convert to fraction form
    3,438.50/4,745.51 = 2,877.98/x
  3. Step 3: Cross multiply
    3,438.50x = 4,745.51 × 2,877.98
  4. Step 4: Simplify right side
    3,438.50x = 13,657,444.75
  5. Step 5: Solve for x
    x = 13,657,444.75/3,438.50
  6. Step 6: Final answer
    x = 3,971.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.