Home / 5,461.20-8,188.08-2,688.48

Finding the Fourth Proportional to 5,461.20, 8,188.08 and 2,688.48

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Solution

The fourth proportional to 5,461.20, 8,188.08 and 2,688.48 is: 4,030.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,461.20 : 8,188.08 = 2,688.48 : x
  2. Step 2: Convert to fraction form
    5,461.20/8,188.08 = 2,688.48/x
  3. Step 3: Cross multiply
    5,461.20x = 8,188.08 × 2,688.48
  4. Step 4: Simplify right side
    5,461.20x = 22,013,489.32
  5. Step 5: Solve for x
    x = 22,013,489.32/5,461.20
  6. Step 6: Final answer
    x = 4,030.89

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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.