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Finding the Fourth Proportional to 3,126.74, 4,314.74 and 1,710.15

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Solution

The fourth proportional to 3,126.74, 4,314.74 and 1,710.15 is: 2,359.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,126.74 : 4,314.74 = 1,710.15 : x
  2. Step 2: Convert to fraction form
    3,126.74/4,314.74 = 1,710.15/x
  3. Step 3: Cross multiply
    3,126.74x = 4,314.74 × 1,710.15
  4. Step 4: Simplify right side
    3,126.74x = 7,378,848.34
  5. Step 5: Solve for x
    x = 7,378,848.34/3,126.74
  6. Step 6: Final answer
    x = 2,359.92

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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.