Home / 4,081.48-6,123.24-1,308.40

Finding the Fourth Proportional to 4,081.48, 6,123.24 and 1,308.40

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Solution

The fourth proportional to 4,081.48, 6,123.24 and 1,308.40 is: 1,962.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,081.48 : 6,123.24 = 1,308.40 : x
  2. Step 2: Convert to fraction form
    4,081.48/6,123.24 = 1,308.40/x
  3. Step 3: Cross multiply
    4,081.48x = 6,123.24 × 1,308.40
  4. Step 4: Simplify right side
    4,081.48x = 8,011,647.22
  5. Step 5: Solve for x
    x = 8,011,647.22/4,081.48
  6. Step 6: Final answer
    x = 1,962.93

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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.