Home / 6,622.88-9,136.08-4,140.32

Finding the Fourth Proportional to 6,622.88, 9,136.08 and 4,140.32

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Solution

The fourth proportional to 6,622.88, 9,136.08 and 4,140.32 is: 5,711.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,622.88 : 9,136.08 = 4,140.32 : x
  2. Step 2: Convert to fraction form
    6,622.88/9,136.08 = 4,140.32/x
  3. Step 3: Cross multiply
    6,622.88x = 9,136.08 × 4,140.32
  4. Step 4: Simplify right side
    6,622.88x = 37,826,294.75
  5. Step 5: Solve for x
    x = 37,826,294.75/6,622.88
  6. Step 6: Final answer
    x = 5,711.46

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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.