Home / 4,681.40-7,018.70-2,214.86

Finding the Fourth Proportional to 4,681.40, 7,018.70 and 2,214.86

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Solution

The fourth proportional to 4,681.40, 7,018.70 and 2,214.86 is: 3,320.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,681.40 : 7,018.70 = 2,214.86 : x
  2. Step 2: Convert to fraction form
    4,681.40/7,018.70 = 2,214.86/x
  3. Step 3: Cross multiply
    4,681.40x = 7,018.70 × 2,214.86
  4. Step 4: Simplify right side
    4,681.40x = 15,545,437.88
  5. Step 5: Solve for x
    x = 15,545,437.88/4,681.40
  6. Step 6: Final answer
    x = 3,320.68

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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.