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Finding the Fourth Proportional to 1,921.44, 2,882.16 and 534.72

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Solution

The fourth proportional to 1,921.44, 2,882.16 and 534.72 is: 802.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,921.44 : 2,882.16 = 534.72 : x
  2. Step 2: Convert to fraction form
    1,921.44/2,882.16 = 534.72/x
  3. Step 3: Cross multiply
    1,921.44x = 2,882.16 × 534.72
  4. Step 4: Simplify right side
    1,921.44x = 1,541,148.60
  5. Step 5: Solve for x
    x = 1,541,148.60/1,921.44
  6. Step 6: Final answer
    x = 802.08

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1.5x scale

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.