Home / 2,316.64-3,471.36-1,275.76

Finding the Fourth Proportional to 2,316.64, 3,471.36 and 1,275.76

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Solution

The fourth proportional to 2,316.64, 3,471.36 and 1,275.76 is: 1,911.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,316.64 : 3,471.36 = 1,275.76 : x
  2. Step 2: Convert to fraction form
    2,316.64/3,471.36 = 1,275.76/x
  3. Step 3: Cross multiply
    2,316.64x = 3,471.36 × 1,275.76
  4. Step 4: Simplify right side
    2,316.64x = 4,428,622.23
  5. Step 5: Solve for x
    x = 4,428,622.23/2,316.64
  6. Step 6: Final answer
    x = 1,911.66

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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.