Home / 5,728.02-7,905.22-3,210.12

Finding the Fourth Proportional to 5,728.02, 7,905.22 and 3,210.12

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Solution

The fourth proportional to 5,728.02, 7,905.22 and 3,210.12 is: 4,430.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,728.02 : 7,905.22 = 3,210.12 : x
  2. Step 2: Convert to fraction form
    5,728.02/7,905.22 = 3,210.12/x
  3. Step 3: Cross multiply
    5,728.02x = 7,905.22 × 3,210.12
  4. Step 4: Simplify right side
    5,728.02x = 25,376,704.83
  5. Step 5: Solve for x
    x = 25,376,704.83/5,728.02
  6. Step 6: Final answer
    x = 4,430.28

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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.