Home / 5,420.15-8,133.22-2,646.84

Finding the Fourth Proportional to 5,420.15, 8,133.22 and 2,646.84

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Solution

The fourth proportional to 5,420.15, 8,133.22 and 2,646.84 is: 3,971.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,420.15 : 8,133.22 = 2,646.84 : x
  2. Step 2: Convert to fraction form
    5,420.15/8,133.22 = 2,646.84/x
  3. Step 3: Cross multiply
    5,420.15x = 8,133.22 × 2,646.84
  4. Step 4: Simplify right side
    5,420.15x = 21,527,332.02
  5. Step 5: Solve for x
    x = 21,527,332.02/5,420.15
  6. Step 6: Final answer
    x = 3,971.72

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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.