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Finding the Fourth Proportional to 3,160.79, 4,740.63 and 968.93

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Solution

The fourth proportional to 3,160.79, 4,740.63 and 968.93 is: 1,453.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,160.79 : 4,740.63 = 968.93 : x
  2. Step 2: Convert to fraction form
    3,160.79/4,740.63 = 968.93/x
  3. Step 3: Cross multiply
    3,160.79x = 4,740.63 × 968.93
  4. Step 4: Simplify right side
    3,160.79x = 4,593,338.63
  5. Step 5: Solve for x
    x = 4,593,338.63/3,160.79
  6. Step 6: Final answer
    x = 1,453.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.