Home / 7,120.35-9,815.58-4,567.86

Finding the Fourth Proportional to 7,120.35, 9,815.58 and 4,567.86

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Solution

The fourth proportional to 7,120.35, 9,815.58 and 4,567.86 is: 6,296.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,120.35 : 9,815.58 = 4,567.86 : x
  2. Step 2: Convert to fraction form
    7,120.35/9,815.58 = 4,567.86/x
  3. Step 3: Cross multiply
    7,120.35x = 9,815.58 × 4,567.86
  4. Step 4: Simplify right side
    7,120.35x = 44,836,195.26
  5. Step 5: Solve for x
    x = 44,836,195.26/7,120.35
  6. Step 6: Final answer
    x = 6,296.91

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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.