Home / 5,038.50-6,954.85-3,125.78

Finding the Fourth Proportional to 5,038.50, 6,954.85 and 3,125.78

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Solution

The fourth proportional to 5,038.50, 6,954.85 and 3,125.78 is: 4,314.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,038.50 : 6,954.85 = 3,125.78 : x
  2. Step 2: Convert to fraction form
    5,038.50/6,954.85 = 3,125.78/x
  3. Step 3: Cross multiply
    5,038.50x = 6,954.85 × 3,125.78
  4. Step 4: Simplify right side
    5,038.50x = 21,739,331.03
  5. Step 5: Solve for x
    x = 21,739,331.03/5,038.50
  6. Step 6: Final answer
    x = 4,314.64

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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.