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Finding the Fourth Proportional to 940.32, 1,297.63 and 562.38

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Solution

The fourth proportional to 940.32, 1,297.63 and 562.38 is: 776.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    940.32 : 1,297.63 = 562.38 : x
  2. Step 2: Convert to fraction form
    940.32/1,297.63 = 562.38/x
  3. Step 3: Cross multiply
    940.32x = 1,297.63 × 562.38
  4. Step 4: Simplify right side
    940.32x = 729,761.16
  5. Step 5: Solve for x
    x = 729,761.16/940.32
  6. Step 6: Final answer
    x = 776.08

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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.