Home / 1,931.34-2,665.26-1,047.14

Finding the Fourth Proportional to 1,931.34, 2,665.26 and 1,047.14

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Solution

The fourth proportional to 1,931.34, 2,665.26 and 1,047.14 is: 1,445.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,931.34 : 2,665.26 = 1,047.14 : x
  2. Step 2: Convert to fraction form
    1,931.34/2,665.26 = 1,047.14/x
  3. Step 3: Cross multiply
    1,931.34x = 2,665.26 × 1,047.14
  4. Step 4: Simplify right side
    1,931.34x = 2,790,900.36
  5. Step 5: Solve for x
    x = 2,790,900.36/1,931.34
  6. Step 6: Final answer
    x = 1,445.06

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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.