Home / 5,145.27-7,714.40-2,475.45

Finding the Fourth Proportional to 5,145.27, 7,714.40 and 2,475.45

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Solution

The fourth proportional to 5,145.27, 7,714.40 and 2,475.45 is: 3,711.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,145.27 : 7,714.40 = 2,475.45 : x
  2. Step 2: Convert to fraction form
    5,145.27/7,714.40 = 2,475.45/x
  3. Step 3: Cross multiply
    5,145.27x = 7,714.40 × 2,475.45
  4. Step 4: Simplify right side
    5,145.27x = 19,096,599.10
  5. Step 5: Solve for x
    x = 19,096,599.10/5,145.27
  6. Step 6: Final answer
    x = 3,711.49

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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.