Home / 7,022.56-9,690.72-4,037.92

Finding the Fourth Proportional to 7,022.56, 9,690.72 and 4,037.92

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Solution

The fourth proportional to 7,022.56, 9,690.72 and 4,037.92 is: 5,572.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,022.56 : 9,690.72 = 4,037.92 : x
  2. Step 2: Convert to fraction form
    7,022.56/9,690.72 = 4,037.92/x
  3. Step 3: Cross multiply
    7,022.56x = 9,690.72 × 4,037.92
  4. Step 4: Simplify right side
    7,022.56x = 39,130,352.10
  5. Step 5: Solve for x
    x = 39,130,352.10/7,022.56
  6. Step 6: Final answer
    x = 5,572.09

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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.