Home / 7,358.58-10,155.60-4,215.42

Finding the Fourth Proportional to 7,358.58, 10,155.60 and 4,215.42

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Solution

The fourth proportional to 7,358.58, 10,155.60 and 4,215.42 is: 5,817.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,358.58 : 10,155.60 = 4,215.42 : x
  2. Step 2: Convert to fraction form
    7,358.58/10,155.60 = 4,215.42/x
  3. Step 3: Cross multiply
    7,358.58x = 10,155.60 × 4,215.42
  4. Step 4: Simplify right side
    7,358.58x = 42,810,119.35
  5. Step 5: Solve for x
    x = 42,810,119.35/7,358.58
  6. Step 6: Final answer
    x = 5,817.71

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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.