Home / 7,887.90-10,885.59-4,530.54

Finding the Fourth Proportional to 7,887.90, 10,885.59 and 4,530.54

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Solution

The fourth proportional to 7,887.90, 10,885.59 and 4,530.54 is: 6,252.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,887.90 : 10,885.59 = 4,530.54 : x
  2. Step 2: Convert to fraction form
    7,887.90/10,885.59 = 4,530.54/x
  3. Step 3: Cross multiply
    7,887.90x = 10,885.59 × 4,530.54
  4. Step 4: Simplify right side
    7,887.90x = 49,317,600.92
  5. Step 5: Solve for x
    x = 49,317,600.92/7,887.90
  6. Step 6: Final answer
    x = 6,252.31

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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.