Home / 4,298.50-6,447.64-1,376.80

Finding the Fourth Proportional to 4,298.50, 6,447.64 and 1,376.80

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Solution

The fourth proportional to 4,298.50, 6,447.64 and 1,376.80 is: 2,065.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,298.50 : 6,447.64 = 1,376.80 : x
  2. Step 2: Convert to fraction form
    4,298.50/6,447.64 = 1,376.80/x
  3. Step 3: Cross multiply
    4,298.50x = 6,447.64 × 1,376.80
  4. Step 4: Simplify right side
    4,298.50x = 8,877,110.75
  5. Step 5: Solve for x
    x = 8,877,110.75/4,298.50
  6. Step 6: Final answer
    x = 2,065.16

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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.