Home / 7,877.64-11,817.63-2,880.26

Finding the Fourth Proportional to 7,877.64, 11,817.63 and 2,880.26

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Solution

The fourth proportional to 7,877.64, 11,817.63 and 2,880.26 is: 4,320.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,877.64 : 11,817.63 = 2,880.26 : x
  2. Step 2: Convert to fraction form
    7,877.64/11,817.63 = 2,880.26/x
  3. Step 3: Cross multiply
    7,877.64x = 11,817.63 × 2,880.26
  4. Step 4: Simplify right side
    7,877.64x = 34,037,898.69
  5. Step 5: Solve for x
    x = 34,037,898.69/7,877.64
  6. Step 6: Final answer
    x = 4,320.83

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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.