Home / 7,529.85-10,391.05-4,172.65

Finding the Fourth Proportional to 7,529.85, 10,391.05 and 4,172.65

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Solution

The fourth proportional to 7,529.85, 10,391.05 and 4,172.65 is: 5,758.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,529.85 : 10,391.05 = 4,172.65 : x
  2. Step 2: Convert to fraction form
    7,529.85/10,391.05 = 4,172.65/x
  3. Step 3: Cross multiply
    7,529.85x = 10,391.05 × 4,172.65
  4. Step 4: Simplify right side
    7,529.85x = 43,358,178.37
  5. Step 5: Solve for x
    x = 43,358,178.37/7,529.85
  6. Step 6: Final answer
    x = 5,758.17

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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.