Home / 5,256.30-7,869.87-2,653.80

Finding the Fourth Proportional to 5,256.30, 7,869.87 and 2,653.80

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Solution

The fourth proportional to 5,256.30, 7,869.87 and 2,653.80 is: 3,973.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,256.30 : 7,869.87 = 2,653.80 : x
  2. Step 2: Convert to fraction form
    5,256.30/7,869.87 = 2,653.80/x
  3. Step 3: Cross multiply
    5,256.30x = 7,869.87 × 2,653.80
  4. Step 4: Simplify right side
    5,256.30x = 20,885,061.01
  5. Step 5: Solve for x
    x = 20,885,061.01/5,256.30
  6. Step 6: Final answer
    x = 3,973.34

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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.