Home / 7,105.30-9,806.54-4,122.07

Finding the Fourth Proportional to 7,105.30, 9,806.54 and 4,122.07

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Solution

The fourth proportional to 7,105.30, 9,806.54 and 4,122.07 is: 5,689.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,105.30 : 9,806.54 = 4,122.07 : x
  2. Step 2: Convert to fraction form
    7,105.30/9,806.54 = 4,122.07/x
  3. Step 3: Cross multiply
    7,105.30x = 9,806.54 × 4,122.07
  4. Step 4: Simplify right side
    7,105.30x = 40,423,244.34
  5. Step 5: Solve for x
    x = 40,423,244.34/7,105.30
  6. Step 6: Final answer
    x = 5,689.17

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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.