Home / 5,220.30-7,203.98-2,862.45

Finding the Fourth Proportional to 5,220.30, 7,203.98 and 2,862.45

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Solution

The fourth proportional to 5,220.30, 7,203.98 and 2,862.45 is: 3,950.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,220.30 : 7,203.98 = 2,862.45 : x
  2. Step 2: Convert to fraction form
    5,220.30/7,203.98 = 2,862.45/x
  3. Step 3: Cross multiply
    5,220.30x = 7,203.98 × 2,862.45
  4. Step 4: Simplify right side
    5,220.30x = 20,621,018.24
  5. Step 5: Solve for x
    x = 20,621,018.24/5,220.30
  6. Step 6: Final answer
    x = 3,950.16

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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.