Home / 3,931.10-5,424.14-2,253.04

Finding the Fourth Proportional to 3,931.10, 5,424.14 and 2,253.04

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Solution

The fourth proportional to 3,931.10, 5,424.14 and 2,253.04 is: 3,108.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,931.10 : 5,424.14 = 2,253.04 : x
  2. Step 2: Convert to fraction form
    3,931.10/5,424.14 = 2,253.04/x
  3. Step 3: Cross multiply
    3,931.10x = 5,424.14 × 2,253.04
  4. Step 4: Simplify right side
    3,931.10x = 12,220,804.39
  5. Step 5: Solve for x
    x = 12,220,804.39/3,931.10
  6. Step 6: Final answer
    x = 3,108.75

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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.