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Finding the Fourth Proportional to 1,521.89, 2,283.38 and 534.86

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Solution

The fourth proportional to 1,521.89, 2,283.38 and 534.86 is: 802.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,521.89 : 2,283.38 = 534.86 : x
  2. Step 2: Convert to fraction form
    1,521.89/2,283.38 = 534.86/x
  3. Step 3: Cross multiply
    1,521.89x = 2,283.38 × 534.86
  4. Step 4: Simplify right side
    1,521.89x = 1,221,288.63
  5. Step 5: Solve for x
    x = 1,221,288.63/1,521.89
  6. Step 6: Final answer
    x = 802.48

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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.