Home / 5,424.40-8,130.20-4,054.80

Finding the Fourth Proportional to 5,424.40, 8,130.20 and 4,054.80

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Solution

The fourth proportional to 5,424.40, 8,130.20 and 4,054.80 is: 6,077.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,424.40 : 8,130.20 = 4,054.80 : x
  2. Step 2: Convert to fraction form
    5,424.40/8,130.20 = 4,054.80/x
  3. Step 3: Cross multiply
    5,424.40x = 8,130.20 × 4,054.80
  4. Step 4: Simplify right side
    5,424.40x = 32,966,334.96
  5. Step 5: Solve for x
    x = 32,966,334.96/5,424.40
  6. Step 6: Final answer
    x = 6,077.42

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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.