Home / 2,475.66-3,416.40-1,356.64

Finding the Fourth Proportional to 2,475.66, 3,416.40 and 1,356.64

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Solution

The fourth proportional to 2,475.66, 3,416.40 and 1,356.64 is: 1,872.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,475.66 : 3,416.40 = 1,356.64 : x
  2. Step 2: Convert to fraction form
    2,475.66/3,416.40 = 1,356.64/x
  3. Step 3: Cross multiply
    2,475.66x = 3,416.40 × 1,356.64
  4. Step 4: Simplify right side
    2,475.66x = 4,634,824.90
  5. Step 5: Solve for x
    x = 4,634,824.90/2,475.66
  6. Step 6: Final answer
    x = 1,872.16

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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.