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Finding the Fourth Proportional to 960.68, 1,326.51 and 607.16

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Solution

The fourth proportional to 960.68, 1,326.51 and 607.16 is: 838.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    960.68 : 1,326.51 = 607.16 : x
  2. Step 2: Convert to fraction form
    960.68/1,326.51 = 607.16/x
  3. Step 3: Cross multiply
    960.68x = 1,326.51 × 607.16
  4. Step 4: Simplify right side
    960.68x = 805,403.81
  5. Step 5: Solve for x
    x = 805,403.81/960.68
  6. Step 6: Final answer
    x = 838.37

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Double scale
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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.