Home / 4,677.92-7,018.08-1,390.94

Finding the Fourth Proportional to 4,677.92, 7,018.08 and 1,390.94

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Solution

The fourth proportional to 4,677.92, 7,018.08 and 1,390.94 is: 2,086.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,677.92 : 7,018.08 = 1,390.94 : x
  2. Step 2: Convert to fraction form
    4,677.92/7,018.08 = 1,390.94/x
  3. Step 3: Cross multiply
    4,677.92x = 7,018.08 × 1,390.94
  4. Step 4: Simplify right side
    4,677.92x = 9,761,728.20
  5. Step 5: Solve for x
    x = 9,761,728.20/4,677.92
  6. Step 6: Final answer
    x = 2,086.77

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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.