Home / 6,417.80-9,622.56-4,219.88

Finding the Fourth Proportional to 6,417.80, 9,622.56 and 4,219.88

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Solution

The fourth proportional to 6,417.80, 9,622.56 and 4,219.88 is: 6,327.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,417.80 : 9,622.56 = 4,219.88 : x
  2. Step 2: Convert to fraction form
    6,417.80/9,622.56 = 4,219.88/x
  3. Step 3: Cross multiply
    6,417.80x = 9,622.56 × 4,219.88
  4. Step 4: Simplify right side
    6,417.80x = 40,606,048.49
  5. Step 5: Solve for x
    x = 40,606,048.49/6,417.80
  6. Step 6: Final answer
    x = 6,327.10

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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.