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Finding the Fourth Proportional to 1,955.64, 2,699.86 and 1,503.88

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Solution

The fourth proportional to 1,955.64, 2,699.86 and 1,503.88 is: 2,076.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,955.64 : 2,699.86 = 1,503.88 : x
  2. Step 2: Convert to fraction form
    1,955.64/2,699.86 = 1,503.88/x
  3. Step 3: Cross multiply
    1,955.64x = 2,699.86 × 1,503.88
  4. Step 4: Simplify right side
    1,955.64x = 4,060,265.46
  5. Step 5: Solve for x
    x = 4,060,265.46/1,955.64
  6. Step 6: Final answer
    x = 2,076.18

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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.