Home / 7,190.31-10,779.08-2,806.77

Finding the Fourth Proportional to 7,190.31, 10,779.08 and 2,806.77

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Solution

The fourth proportional to 7,190.31, 10,779.08 and 2,806.77 is: 4,207.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,190.31 : 10,779.08 = 2,806.77 : x
  2. Step 2: Convert to fraction form
    7,190.31/10,779.08 = 2,806.77/x
  3. Step 3: Cross multiply
    7,190.31x = 10,779.08 × 2,806.77
  4. Step 4: Simplify right side
    7,190.31x = 30,254,384.34
  5. Step 5: Solve for x
    x = 30,254,384.34/7,190.31
  6. Step 6: Final answer
    x = 4,207.66

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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.