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Finding the Fourth Proportional to 708.28, 976.26 and 695.32

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Solution

The fourth proportional to 708.28, 976.26 and 695.32 is: 958.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    708.28 : 976.26 = 695.32 : x
  2. Step 2: Convert to fraction form
    708.28/976.26 = 695.32/x
  3. Step 3: Cross multiply
    708.28x = 976.26 × 695.32
  4. Step 4: Simplify right side
    708.28x = 678,813.10
  5. Step 5: Solve for x
    x = 678,813.10/708.28
  6. Step 6: Final answer
    x = 958.40

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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.