Home / 7,779.36-11,671.10-4,080.57

Finding the Fourth Proportional to 7,779.36, 11,671.10 and 4,080.57

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Solution

The fourth proportional to 7,779.36, 11,671.10 and 4,080.57 is: 6,121.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,779.36 : 11,671.10 = 4,080.57 : x
  2. Step 2: Convert to fraction form
    7,779.36/11,671.10 = 4,080.57/x
  3. Step 3: Cross multiply
    7,779.36x = 11,671.10 × 4,080.57
  4. Step 4: Simplify right side
    7,779.36x = 47,624,740.53
  5. Step 5: Solve for x
    x = 47,624,740.53/7,779.36
  6. Step 6: Final answer
    x = 6,121.94

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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.