Home / 4,977.20-6,866.20-2,984.28

Finding the Fourth Proportional to 4,977.20, 6,866.20 and 2,984.28

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Solution

The fourth proportional to 4,977.20, 6,866.20 and 2,984.28 is: 4,116.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,977.20 : 6,866.20 = 2,984.28 : x
  2. Step 2: Convert to fraction form
    4,977.20/6,866.20 = 2,984.28/x
  3. Step 3: Cross multiply
    4,977.20x = 6,866.20 × 2,984.28
  4. Step 4: Simplify right side
    4,977.20x = 20,490,663.34
  5. Step 5: Solve for x
    x = 20,490,663.34/4,977.20
  6. Step 6: Final answer
    x = 4,116.91

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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.