Home / 3,933.19-5,430.93-3,047.45

Finding the Fourth Proportional to 3,933.19, 5,430.93 and 3,047.45

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Solution

The fourth proportional to 3,933.19, 5,430.93 and 3,047.45 is: 4,207.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,933.19 : 5,430.93 = 3,047.45 : x
  2. Step 2: Convert to fraction form
    3,933.19/5,430.93 = 3,047.45/x
  3. Step 3: Cross multiply
    3,933.19x = 5,430.93 × 3,047.45
  4. Step 4: Simplify right side
    3,933.19x = 16,550,487.63
  5. Step 5: Solve for x
    x = 16,550,487.63/3,933.19
  6. Step 6: Final answer
    x = 4,207.91

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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.