Home / 5,630.12-8,445.20-3,320

Finding the Fourth Proportional to 5,630.12, 8,445.20 and 3,320

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Solution

The fourth proportional to 5,630.12, 8,445.20 and 3,320 is: 4,980.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,630.12 : 8,445.20 = 3,320 : x
  2. Step 2: Convert to fraction form
    5,630.12/8,445.20 = 3,320/x
  3. Step 3: Cross multiply
    5,630.12x = 8,445.20 × 3,320
  4. Step 4: Simplify right side
    5,630.12x = 28,038,064.00
  5. Step 5: Solve for x
    x = 28,038,064.00/5,630.12
  6. Step 6: Final answer
    x = 4,980.01

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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.