Home / 2,830.10-3,905.54-1,571.18

Finding the Fourth Proportional to 2,830.10, 3,905.54 and 1,571.18

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Solution

The fourth proportional to 2,830.10, 3,905.54 and 1,571.18 is: 2,168.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,830.10 : 3,905.54 = 1,571.18 : x
  2. Step 2: Convert to fraction form
    2,830.10/3,905.54 = 1,571.18/x
  3. Step 3: Cross multiply
    2,830.10x = 3,905.54 × 1,571.18
  4. Step 4: Simplify right side
    2,830.10x = 6,136,306.34
  5. Step 5: Solve for x
    x = 6,136,306.34/2,830.10
  6. Step 6: Final answer
    x = 2,168.23

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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.