Home / 4,453.09-6,678.29-1,490.78

Finding the Fourth Proportional to 4,453.09, 6,678.29 and 1,490.78

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Solution

The fourth proportional to 4,453.09, 6,678.29 and 1,490.78 is: 2,235.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,453.09 : 6,678.29 = 1,490.78 : x
  2. Step 2: Convert to fraction form
    4,453.09/6,678.29 = 1,490.78/x
  3. Step 3: Cross multiply
    4,453.09x = 6,678.29 × 1,490.78
  4. Step 4: Simplify right side
    4,453.09x = 9,955,861.17
  5. Step 5: Solve for x
    x = 9,955,861.17/4,453.09
  6. Step 6: Final answer
    x = 2,235.72

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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.