Home / 7,302.24-10,078.08-4,158.72

Finding the Fourth Proportional to 7,302.24, 10,078.08 and 4,158.72

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Solution

The fourth proportional to 7,302.24, 10,078.08 and 4,158.72 is: 5,739.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,302.24 : 10,078.08 = 4,158.72 : x
  2. Step 2: Convert to fraction form
    7,302.24/10,078.08 = 4,158.72/x
  3. Step 3: Cross multiply
    7,302.24x = 10,078.08 × 4,158.72
  4. Step 4: Simplify right side
    7,302.24x = 41,911,912.86
  5. Step 5: Solve for x
    x = 41,911,912.86/7,302.24
  6. Step 6: Final answer
    x = 5,739.60

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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.