Home / 3,450.81-4,762.08-1,878.90

Finding the Fourth Proportional to 3,450.81, 4,762.08 and 1,878.90

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Solution

The fourth proportional to 3,450.81, 4,762.08 and 1,878.90 is: 2,592.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,450.81 : 4,762.08 = 1,878.90 : x
  2. Step 2: Convert to fraction form
    3,450.81/4,762.08 = 1,878.90/x
  3. Step 3: Cross multiply
    3,450.81x = 4,762.08 × 1,878.90
  4. Step 4: Simplify right side
    3,450.81x = 8,947,472.11
  5. Step 5: Solve for x
    x = 8,947,472.11/3,450.81
  6. Step 6: Final answer
    x = 2,592.86

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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.