Home / 7,551.57-10,421.78-4,195.55

Finding the Fourth Proportional to 7,551.57, 10,421.78 and 4,195.55

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Solution

The fourth proportional to 7,551.57, 10,421.78 and 4,195.55 is: 5,790.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,551.57 : 10,421.78 = 4,195.55 : x
  2. Step 2: Convert to fraction form
    7,551.57/10,421.78 = 4,195.55/x
  3. Step 3: Cross multiply
    7,551.57x = 10,421.78 × 4,195.55
  4. Step 4: Simplify right side
    7,551.57x = 43,725,025.99
  5. Step 5: Solve for x
    x = 43,725,025.99/7,551.57
  6. Step 6: Final answer
    x = 5,790.19

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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.