Home / 7,890.13-10,888.68-4,353.22

Finding the Fourth Proportional to 7,890.13, 10,888.68 and 4,353.22

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Solution

The fourth proportional to 7,890.13, 10,888.68 and 4,353.22 is: 6,007.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,890.13 : 10,888.68 = 4,353.22 : x
  2. Step 2: Convert to fraction form
    7,890.13/10,888.68 = 4,353.22/x
  3. Step 3: Cross multiply
    7,890.13x = 10,888.68 × 4,353.22
  4. Step 4: Simplify right side
    7,890.13x = 47,400,819.55
  5. Step 5: Solve for x
    x = 47,400,819.55/7,890.13
  6. Step 6: Final answer
    x = 6,007.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.