Home / 7,890.77-10,889.32-4,354.11

Finding the Fourth Proportional to 7,890.77, 10,889.32 and 4,354.11

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Solution

The fourth proportional to 7,890.77, 10,889.32 and 4,354.11 is: 6,008.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,890.77 : 10,889.32 = 4,354.11 : x
  2. Step 2: Convert to fraction form
    7,890.77/10,889.32 = 4,354.11/x
  3. Step 3: Cross multiply
    7,890.77x = 10,889.32 × 4,354.11
  4. Step 4: Simplify right side
    7,890.77x = 47,413,297.11
  5. Step 5: Solve for x
    x = 47,413,297.11/7,890.77
  6. Step 6: Final answer
    x = 6,008.70

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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.