Home / 3,430.45-4,733.74-1,938.50

Finding the Fourth Proportional to 3,430.45, 4,733.74 and 1,938.50

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Solution

The fourth proportional to 3,430.45, 4,733.74 and 1,938.50 is: 2,674.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,430.45 : 4,733.74 = 1,938.50 : x
  2. Step 2: Convert to fraction form
    3,430.45/4,733.74 = 1,938.50/x
  3. Step 3: Cross multiply
    3,430.45x = 4,733.74 × 1,938.50
  4. Step 4: Simplify right side
    3,430.45x = 9,176,354.99
  5. Step 5: Solve for x
    x = 9,176,354.99/3,430.45
  6. Step 6: Final answer
    x = 2,674.97

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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.