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Finding the Fourth Proportional to 3,145.04, 4,718.24 and 953.93

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Solution

The fourth proportional to 3,145.04, 4,718.24 and 953.93 is: 1,431.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145.04 : 4,718.24 = 953.93 : x
  2. Step 2: Convert to fraction form
    3,145.04/4,718.24 = 953.93/x
  3. Step 3: Cross multiply
    3,145.04x = 4,718.24 × 953.93
  4. Step 4: Simplify right side
    3,145.04x = 4,500,870.68
  5. Step 5: Solve for x
    x = 4,500,870.68/3,145.04
  6. Step 6: Final answer
    x = 1,431.10

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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.