Home / 2,475.76-3,416.56-1,356.68

Finding the Fourth Proportional to 2,475.76, 3,416.56 and 1,356.68

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Solution

The fourth proportional to 2,475.76, 3,416.56 and 1,356.68 is: 1,872.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,475.76 : 3,416.56 = 1,356.68 : x
  2. Step 2: Convert to fraction form
    2,475.76/3,416.56 = 1,356.68/x
  3. Step 3: Cross multiply
    2,475.76x = 3,416.56 × 1,356.68
  4. Step 4: Simplify right side
    2,475.76x = 4,635,166.69
  5. Step 5: Solve for x
    x = 4,635,166.69/2,475.76
  6. Step 6: Final answer
    x = 1,872.22

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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.