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Finding the Fourth Proportional to 1,671.74, 2,307.03 and 925.76

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Solution

The fourth proportional to 1,671.74, 2,307.03 and 925.76 is: 1,277.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,671.74 : 2,307.03 = 925.76 : x
  2. Step 2: Convert to fraction form
    1,671.74/2,307.03 = 925.76/x
  3. Step 3: Cross multiply
    1,671.74x = 2,307.03 × 925.76
  4. Step 4: Simplify right side
    1,671.74x = 2,135,756.09
  5. Step 5: Solve for x
    x = 2,135,756.09/1,671.74
  6. Step 6: Final answer
    x = 1,277.56

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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.