Home / 7,349.84-10,143.24-4,207.28

Finding the Fourth Proportional to 7,349.84, 10,143.24 and 4,207.28

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Solution

The fourth proportional to 7,349.84, 10,143.24 and 4,207.28 is: 5,806.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,349.84 : 10,143.24 = 4,207.28 : x
  2. Step 2: Convert to fraction form
    7,349.84/10,143.24 = 4,207.28/x
  3. Step 3: Cross multiply
    7,349.84x = 10,143.24 × 4,207.28
  4. Step 4: Simplify right side
    7,349.84x = 42,675,450.79
  5. Step 5: Solve for x
    x = 42,675,450.79/7,349.84
  6. Step 6: Final answer
    x = 5,806.31

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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.