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Finding the Fourth Proportional to 1,551.48, 2,141.04 and 852.84

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Solution

The fourth proportional to 1,551.48, 2,141.04 and 852.84 is: 1,176.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,551.48 : 2,141.04 = 852.84 : x
  2. Step 2: Convert to fraction form
    1,551.48/2,141.04 = 852.84/x
  3. Step 3: Cross multiply
    1,551.48x = 2,141.04 × 852.84
  4. Step 4: Simplify right side
    1,551.48x = 1,825,964.55
  5. Step 5: Solve for x
    x = 1,825,964.55/1,551.48
  6. Step 6: Final answer
    x = 1,176.92

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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.