Home / 6,429.34-9,628.40-4,449.70

Finding the Fourth Proportional to 6,429.34, 9,628.40 and 4,449.70

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Solution

The fourth proportional to 6,429.34, 9,628.40 and 4,449.70 is: 6,663.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,429.34 : 9,628.40 = 4,449.70 : x
  2. Step 2: Convert to fraction form
    6,429.34/9,628.40 = 4,449.70/x
  3. Step 3: Cross multiply
    6,429.34x = 9,628.40 × 4,449.70
  4. Step 4: Simplify right side
    6,429.34x = 42,843,491.48
  5. Step 5: Solve for x
    x = 42,843,491.48/6,429.34
  6. Step 6: Final answer
    x = 6,663.75

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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.