Home / 1,316.68-1,975.17-483.79

Finding the Fourth Proportional to 1,316.68, 1,975.17 and 483.79

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Solution

The fourth proportional to 1,316.68, 1,975.17 and 483.79 is: 725.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316.68 : 1,975.17 = 483.79 : x
  2. Step 2: Convert to fraction form
    1,316.68/1,975.17 = 483.79/x
  3. Step 3: Cross multiply
    1,316.68x = 1,975.17 × 483.79
  4. Step 4: Simplify right side
    1,316.68x = 955,567.49
  5. Step 5: Solve for x
    x = 955,567.49/1,316.68
  6. Step 6: Final answer
    x = 725.74

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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.