Home / 7,130.08-10,697.46-3,431.85

Finding the Fourth Proportional to 7,130.08, 10,697.46 and 3,431.85

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Solution

The fourth proportional to 7,130.08, 10,697.46 and 3,431.85 is: 5,148.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,130.08 : 10,697.46 = 3,431.85 : x
  2. Step 2: Convert to fraction form
    7,130.08/10,697.46 = 3,431.85/x
  3. Step 3: Cross multiply
    7,130.08x = 10,697.46 × 3,431.85
  4. Step 4: Simplify right side
    7,130.08x = 36,712,078.10
  5. Step 5: Solve for x
    x = 36,712,078.10/7,130.08
  6. Step 6: Final answer
    x = 5,148.90

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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.