Home / 6,909.32-10,360.93-1,977.84

Finding the Fourth Proportional to 6,909.32, 10,360.93 and 1,977.84

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Solution

The fourth proportional to 6,909.32, 10,360.93 and 1,977.84 is: 2,965.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,909.32 : 10,360.93 = 1,977.84 : x
  2. Step 2: Convert to fraction form
    6,909.32/10,360.93 = 1,977.84/x
  3. Step 3: Cross multiply
    6,909.32x = 10,360.93 × 1,977.84
  4. Step 4: Simplify right side
    6,909.32x = 20,492,261.79
  5. Step 5: Solve for x
    x = 20,492,261.79/6,909.32
  6. Step 6: Final answer
    x = 2,965.89

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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.