Home / 7,891.24-10,889.70-4,354.36

Finding the Fourth Proportional to 7,891.24, 10,889.70 and 4,354.36

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Solution

The fourth proportional to 7,891.24, 10,889.70 and 4,354.36 is: 6,008.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,891.24 : 10,889.70 = 4,354.36 : x
  2. Step 2: Convert to fraction form
    7,891.24/10,889.70 = 4,354.36/x
  3. Step 3: Cross multiply
    7,891.24x = 10,889.70 × 4,354.36
  4. Step 4: Simplify right side
    7,891.24x = 47,417,674.09
  5. Step 5: Solve for x
    x = 47,417,674.09/7,891.24
  6. Step 6: Final answer
    x = 6,008.90

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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.