Home / 7,020.69-9,689.07-4,037.46

Finding the Fourth Proportional to 7,020.69, 9,689.07 and 4,037.46

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Solution

The fourth proportional to 7,020.69, 9,689.07 and 4,037.46 is: 5,571.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,020.69 : 9,689.07 = 4,037.46 : x
  2. Step 2: Convert to fraction form
    7,020.69/9,689.07 = 4,037.46/x
  3. Step 3: Cross multiply
    7,020.69x = 9,689.07 × 4,037.46
  4. Step 4: Simplify right side
    7,020.69x = 39,119,212.37
  5. Step 5: Solve for x
    x = 39,119,212.37/7,020.69
  6. Step 6: Final answer
    x = 5,571.99

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Half scale
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Double scale
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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.