Home / 4,678.40-7,015.98-2,214.38

Finding the Fourth Proportional to 4,678.40, 7,015.98 and 2,214.38

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Solution

The fourth proportional to 4,678.40, 7,015.98 and 2,214.38 is: 3,320.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,678.40 : 7,015.98 = 2,214.38 : x
  2. Step 2: Convert to fraction form
    4,678.40/7,015.98 = 2,214.38/x
  3. Step 3: Cross multiply
    4,678.40x = 7,015.98 × 2,214.38
  4. Step 4: Simplify right side
    4,678.40x = 15,536,045.79
  5. Step 5: Solve for x
    x = 15,536,045.79/4,678.40
  6. Step 6: Final answer
    x = 3,320.80

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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.