Home / 3,209.88-4,430.10-1,883.40

Finding the Fourth Proportional to 3,209.88, 4,430.10 and 1,883.40

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Solution

The fourth proportional to 3,209.88, 4,430.10 and 1,883.40 is: 2,599.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,209.88 : 4,430.10 = 1,883.40 : x
  2. Step 2: Convert to fraction form
    3,209.88/4,430.10 = 1,883.40/x
  3. Step 3: Cross multiply
    3,209.88x = 4,430.10 × 1,883.40
  4. Step 4: Simplify right side
    3,209.88x = 8,343,650.34
  5. Step 5: Solve for x
    x = 8,343,650.34/3,209.88
  6. Step 6: Final answer
    x = 2,599.37

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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.