Home / 4,782.46-7,174.10-1,319.71

Finding the Fourth Proportional to 4,782.46, 7,174.10 and 1,319.71

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Solution

The fourth proportional to 4,782.46, 7,174.10 and 1,319.71 is: 1,979.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,782.46 : 7,174.10 = 1,319.71 : x
  2. Step 2: Convert to fraction form
    4,782.46/7,174.10 = 1,319.71/x
  3. Step 3: Cross multiply
    4,782.46x = 7,174.10 × 1,319.71
  4. Step 4: Simplify right side
    4,782.46x = 9,467,689.04
  5. Step 5: Solve for x
    x = 9,467,689.04/4,782.46
  6. Step 6: Final answer
    x = 1,979.67

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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.