Home / 7,078.60-10,617.35-2,148.26

Finding the Fourth Proportional to 7,078.60, 10,617.35 and 2,148.26

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Solution

The fourth proportional to 7,078.60, 10,617.35 and 2,148.26 is: 3,222.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,078.60 : 10,617.35 = 2,148.26 : x
  2. Step 2: Convert to fraction form
    7,078.60/10,617.35 = 2,148.26/x
  3. Step 3: Cross multiply
    7,078.60x = 10,617.35 × 2,148.26
  4. Step 4: Simplify right side
    7,078.60x = 22,808,828.31
  5. Step 5: Solve for x
    x = 22,808,828.31/7,078.60
  6. Step 6: Final answer
    x = 3,222.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.