Home / 5,400.61-8,100.65-2,114.31

Finding the Fourth Proportional to 5,400.61, 8,100.65 and 2,114.31

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Solution

The fourth proportional to 5,400.61, 8,100.65 and 2,114.31 is: 3,171.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,400.61 : 8,100.65 = 2,114.31 : x
  2. Step 2: Convert to fraction form
    5,400.61/8,100.65 = 2,114.31/x
  3. Step 3: Cross multiply
    5,400.61x = 8,100.65 × 2,114.31
  4. Step 4: Simplify right side
    5,400.61x = 17,127,275.18
  5. Step 5: Solve for x
    x = 17,127,275.18/5,400.61
  6. Step 6: Final answer
    x = 3,171.36

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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.