Home / 2,316.51-3,195.50-1,431.69

Finding the Fourth Proportional to 2,316.51, 3,195.50 and 1,431.69

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Solution

The fourth proportional to 2,316.51, 3,195.50 and 1,431.69 is: 1,974.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,316.51 : 3,195.50 = 1,431.69 : x
  2. Step 2: Convert to fraction form
    2,316.51/3,195.50 = 1,431.69/x
  3. Step 3: Cross multiply
    2,316.51x = 3,195.50 × 1,431.69
  4. Step 4: Simplify right side
    2,316.51x = 4,574,958.24
  5. Step 5: Solve for x
    x = 4,574,958.24/2,316.51
  6. Step 6: Final answer
    x = 1,974.94

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.