Home / 3,931.74-5,424.98-2,253.02

Finding the Fourth Proportional to 3,931.74, 5,424.98 and 2,253.02

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Solution

The fourth proportional to 3,931.74, 5,424.98 and 2,253.02 is: 3,108.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,931.74 : 5,424.98 = 2,253.02 : x
  2. Step 2: Convert to fraction form
    3,931.74/5,424.98 = 2,253.02/x
  3. Step 3: Cross multiply
    3,931.74x = 5,424.98 × 2,253.02
  4. Step 4: Simplify right side
    3,931.74x = 12,222,550.05
  5. Step 5: Solve for x
    x = 12,222,550.05/3,931.74
  6. Step 6: Final answer
    x = 3,108.69

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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.