Home / 5,412.81-8,106.90-4,235.48

Finding the Fourth Proportional to 5,412.81, 8,106.90 and 4,235.48

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Solution

The fourth proportional to 5,412.81, 8,106.90 and 4,235.48 is: 6,343.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,412.81 : 8,106.90 = 4,235.48 : x
  2. Step 2: Convert to fraction form
    5,412.81/8,106.90 = 4,235.48/x
  3. Step 3: Cross multiply
    5,412.81x = 8,106.90 × 4,235.48
  4. Step 4: Simplify right side
    5,412.81x = 34,336,572.28
  5. Step 5: Solve for x
    x = 34,336,572.28/5,412.81
  6. Step 6: Final answer
    x = 6,343.58

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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.