Home / 4,378.21-6,566.49-1,416.72

Finding the Fourth Proportional to 4,378.21, 6,566.49 and 1,416.72

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Solution

The fourth proportional to 4,378.21, 6,566.49 and 1,416.72 is: 2,124.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,378.21 : 6,566.49 = 1,416.72 : x
  2. Step 2: Convert to fraction form
    4,378.21/6,566.49 = 1,416.72/x
  3. Step 3: Cross multiply
    4,378.21x = 6,566.49 × 1,416.72
  4. Step 4: Simplify right side
    4,378.21x = 9,302,877.71
  5. Step 5: Solve for x
    x = 9,302,877.71/4,378.21
  6. Step 6: Final answer
    x = 2,124.81

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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.