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Finding the Fourth Proportional to 1,343.79, 1,854.09 and 925.83

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Solution

The fourth proportional to 1,343.79, 1,854.09 and 925.83 is: 1,277.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,343.79 : 1,854.09 = 925.83 : x
  2. Step 2: Convert to fraction form
    1,343.79/1,854.09 = 925.83/x
  3. Step 3: Cross multiply
    1,343.79x = 1,854.09 × 925.83
  4. Step 4: Simplify right side
    1,343.79x = 1,716,572.14
  5. Step 5: Solve for x
    x = 1,716,572.14/1,343.79
  6. Step 6: Final answer
    x = 1,277.41

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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.