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Finding the Fourth Proportional to 3,091.42, 4,637.10 and 751.46

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Solution

The fourth proportional to 3,091.42, 4,637.10 and 751.46 is: 1,127.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,091.42 : 4,637.10 = 751.46 : x
  2. Step 2: Convert to fraction form
    3,091.42/4,637.10 = 751.46/x
  3. Step 3: Cross multiply
    3,091.42x = 4,637.10 × 751.46
  4. Step 4: Simplify right side
    3,091.42x = 3,484,568.22
  5. Step 5: Solve for x
    x = 3,484,568.22/3,091.42
  6. Step 6: Final answer
    x = 1,127.17

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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.