Home / 4,430.79-6,645.73-2,782.34

Finding the Fourth Proportional to 4,430.79, 6,645.73 and 2,782.34

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Solution

The fourth proportional to 4,430.79, 6,645.73 and 2,782.34 is: 4,173.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,430.79 : 6,645.73 = 2,782.34 : x
  2. Step 2: Convert to fraction form
    4,430.79/6,645.73 = 2,782.34/x
  3. Step 3: Cross multiply
    4,430.79x = 6,645.73 × 2,782.34
  4. Step 4: Simplify right side
    4,430.79x = 18,490,680.41
  5. Step 5: Solve for x
    x = 18,490,680.41/4,430.79
  6. Step 6: Final answer
    x = 4,173.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.