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Finding the Fourth Proportional to 5,261.84, 7,890.36 and 1,797.68

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Solution

The fourth proportional to 5,261.84, 7,890.36 and 1,797.68 is: 2,695.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,261.84 : 7,890.36 = 1,797.68 : x
  2. Step 2: Convert to fraction form
    5,261.84/7,890.36 = 1,797.68/x
  3. Step 3: Cross multiply
    5,261.84x = 7,890.36 × 1,797.68
  4. Step 4: Simplify right side
    5,261.84x = 14,184,342.36
  5. Step 5: Solve for x
    x = 14,184,342.36/5,261.84
  6. Step 6: Final answer
    x = 2,695.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.