Home / 7,491.83-11,223.90-3,785.21

Finding the Fourth Proportional to 7,491.83, 11,223.90 and 3,785.21

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Solution

The fourth proportional to 7,491.83, 11,223.90 and 3,785.21 is: 5,670.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,491.83 : 11,223.90 = 3,785.21 : x
  2. Step 2: Convert to fraction form
    7,491.83/11,223.90 = 3,785.21/x
  3. Step 3: Cross multiply
    7,491.83x = 11,223.90 × 3,785.21
  4. Step 4: Simplify right side
    7,491.83x = 42,484,818.52
  5. Step 5: Solve for x
    x = 42,484,818.52/7,491.83
  6. Step 6: Final answer
    x = 5,670.82

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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.