Home / 1,316.83-1,975.28-1,009.24

Finding the Fourth Proportional to 1,316.83, 1,975.28 and 1,009.24

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Solution

The fourth proportional to 1,316.83, 1,975.28 and 1,009.24 is: 1,513.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316.83 : 1,975.28 = 1,009.24 : x
  2. Step 2: Convert to fraction form
    1,316.83/1,975.28 = 1,009.24/x
  3. Step 3: Cross multiply
    1,316.83x = 1,975.28 × 1,009.24
  4. Step 4: Simplify right side
    1,316.83x = 1,993,531.59
  5. Step 5: Solve for x
    x = 1,993,531.59/1,316.83
  6. Step 6: Final answer
    x = 1,513.89

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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.