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Finding the Fourth Proportional to 945.84, 1,304.64 and 798.24

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Solution

The fourth proportional to 945.84, 1,304.64 and 798.24 is: 1,101.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    945.84 : 1,304.64 = 798.24 : x
  2. Step 2: Convert to fraction form
    945.84/1,304.64 = 798.24/x
  3. Step 3: Cross multiply
    945.84x = 1,304.64 × 798.24
  4. Step 4: Simplify right side
    945.84x = 1,041,415.83
  5. Step 5: Solve for x
    x = 1,041,415.83/945.84
  6. Step 6: Final answer
    x = 1,101.05

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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.