Home / 7,892.18-11,838.31-2,345.58

Finding the Fourth Proportional to 7,892.18, 11,838.31 and 2,345.58

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Solution

The fourth proportional to 7,892.18, 11,838.31 and 2,345.58 is: 3,518.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,892.18 : 11,838.31 = 2,345.58 : x
  2. Step 2: Convert to fraction form
    7,892.18/11,838.31 = 2,345.58/x
  3. Step 3: Cross multiply
    7,892.18x = 11,838.31 × 2,345.58
  4. Step 4: Simplify right side
    7,892.18x = 27,767,697.31
  5. Step 5: Solve for x
    x = 27,767,697.31/7,892.18
  6. Step 6: Final answer
    x = 3,518.38

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1.5x scale

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.