Home / 6,125.52-8,420.64-5,271.60

Finding the Fourth Proportional to 6,125.52, 8,420.64 and 5,271.60

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Solution

The fourth proportional to 6,125.52, 8,420.64 and 5,271.60 is: 7,246.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,125.52 : 8,420.64 = 5,271.60 : x
  2. Step 2: Convert to fraction form
    6,125.52/8,420.64 = 5,271.60/x
  3. Step 3: Cross multiply
    6,125.52x = 8,420.64 × 5,271.60
  4. Step 4: Simplify right side
    6,125.52x = 44,390,245.82
  5. Step 5: Solve for x
    x = 44,390,245.82/6,125.52
  6. Step 6: Final answer
    x = 7,246.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.