Home / 4,279.59-6,416.63-1,782.51

Finding the Fourth Proportional to 4,279.59, 6,416.63 and 1,782.51

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Solution

The fourth proportional to 4,279.59, 6,416.63 and 1,782.51 is: 2,672.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,279.59 : 6,416.63 = 1,782.51 : x
  2. Step 2: Convert to fraction form
    4,279.59/6,416.63 = 1,782.51/x
  3. Step 3: Cross multiply
    4,279.59x = 6,416.63 × 1,782.51
  4. Step 4: Simplify right side
    4,279.59x = 11,437,690.88
  5. Step 5: Solve for x
    x = 11,437,690.88/4,279.59
  6. Step 6: Final answer
    x = 2,672.61

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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.