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Finding the Fourth Proportional to 2,073.64, 3,110.40 and 841.02

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Solution

The fourth proportional to 2,073.64, 3,110.40 and 841.02 is: 1,261.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,073.64 : 3,110.40 = 841.02 : x
  2. Step 2: Convert to fraction form
    2,073.64/3,110.40 = 841.02/x
  3. Step 3: Cross multiply
    2,073.64x = 3,110.40 × 841.02
  4. Step 4: Simplify right side
    2,073.64x = 2,615,908.61
  5. Step 5: Solve for x
    x = 2,615,908.61/2,073.64
  6. Step 6: Final answer
    x = 1,261.51

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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.