Home / 5,220.18-7,203.72-2,830.02

Finding the Fourth Proportional to 5,220.18, 7,203.72 and 2,830.02

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Solution

The fourth proportional to 5,220.18, 7,203.72 and 2,830.02 is: 3,905.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,220.18 : 7,203.72 = 2,830.02 : x
  2. Step 2: Convert to fraction form
    5,220.18/7,203.72 = 2,830.02/x
  3. Step 3: Cross multiply
    5,220.18x = 7,203.72 × 2,830.02
  4. Step 4: Simplify right side
    5,220.18x = 20,386,671.67
  5. Step 5: Solve for x
    x = 20,386,671.67/5,220.18
  6. Step 6: Final answer
    x = 3,905.36

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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.