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Finding the Fourth Proportional to 1,011.84, 1,396.32 and 592.28

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Solution

The fourth proportional to 1,011.84, 1,396.32 and 592.28 is: 817.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,011.84 : 1,396.32 = 592.28 : x
  2. Step 2: Convert to fraction form
    1,011.84/1,396.32 = 592.28/x
  3. Step 3: Cross multiply
    1,011.84x = 1,396.32 × 592.28
  4. Step 4: Simplify right side
    1,011.84x = 827,012.41
  5. Step 5: Solve for x
    x = 827,012.41/1,011.84
  6. Step 6: Final answer
    x = 817.34

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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.