Home / 7,890.65-10,889.12-4,353.96

Finding the Fourth Proportional to 7,890.65, 10,889.12 and 4,353.96

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Solution

The fourth proportional to 7,890.65, 10,889.12 and 4,353.96 is: 6,008.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,890.65 : 10,889.12 = 4,353.96 : x
  2. Step 2: Convert to fraction form
    7,890.65/10,889.12 = 4,353.96/x
  3. Step 3: Cross multiply
    7,890.65x = 10,889.12 × 4,353.96
  4. Step 4: Simplify right side
    7,890.65x = 47,410,803.80
  5. Step 5: Solve for x
    x = 47,410,803.80/7,890.65
  6. Step 6: Final answer
    x = 6,008.48

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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.