Home / 7,875.36-11,811.96-4,590

Finding the Fourth Proportional to 7,875.36, 11,811.96 and 4,590

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Solution

The fourth proportional to 7,875.36, 11,811.96 and 4,590 is: 6,884.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,875.36 : 11,811.96 = 4,590 : x
  2. Step 2: Convert to fraction form
    7,875.36/11,811.96 = 4,590/x
  3. Step 3: Cross multiply
    7,875.36x = 11,811.96 × 4,590
  4. Step 4: Simplify right side
    7,875.36x = 54,216,896.40
  5. Step 5: Solve for x
    x = 54,216,896.40/7,875.36
  6. Step 6: Final answer
    x = 6,884.37

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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.