Home / 5,057.04-6,978.65-2,818.88

Finding the Fourth Proportional to 5,057.04, 6,978.65 and 2,818.88

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Solution

The fourth proportional to 5,057.04, 6,978.65 and 2,818.88 is: 3,890.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,057.04 : 6,978.65 = 2,818.88 : x
  2. Step 2: Convert to fraction form
    5,057.04/6,978.65 = 2,818.88/x
  3. Step 3: Cross multiply
    5,057.04x = 6,978.65 × 2,818.88
  4. Step 4: Simplify right side
    5,057.04x = 19,671,927.92
  5. Step 5: Solve for x
    x = 19,671,927.92/5,057.04
  6. Step 6: Final answer
    x = 3,890.01

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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.