Home / 4,239.39-6,359.49-1,316.91

Finding the Fourth Proportional to 4,239.39, 6,359.49 and 1,316.91

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Solution

The fourth proportional to 4,239.39, 6,359.49 and 1,316.91 is: 1,975.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,239.39 : 6,359.49 = 1,316.91 : x
  2. Step 2: Convert to fraction form
    4,239.39/6,359.49 = 1,316.91/x
  3. Step 3: Cross multiply
    4,239.39x = 6,359.49 × 1,316.91
  4. Step 4: Simplify right side
    4,239.39x = 8,374,875.98
  5. Step 5: Solve for x
    x = 8,374,875.98/4,239.39
  6. Step 6: Final answer
    x = 1,975.49

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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.