Home / 4,905.40-6,766.08-3,136.16

Finding the Fourth Proportional to 4,905.40, 6,766.08 and 3,136.16

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Solution

The fourth proportional to 4,905.40, 6,766.08 and 3,136.16 is: 4,325.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,905.40 : 6,766.08 = 3,136.16 : x
  2. Step 2: Convert to fraction form
    4,905.40/6,766.08 = 3,136.16/x
  3. Step 3: Cross multiply
    4,905.40x = 6,766.08 × 3,136.16
  4. Step 4: Simplify right side
    4,905.40x = 21,219,509.45
  5. Step 5: Solve for x
    x = 21,219,509.45/4,905.40
  6. Step 6: Final answer
    x = 4,325.74

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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.