Home / 6,287.20-9,430.80-1,670.08

Finding the Fourth Proportional to 6,287.20, 9,430.80 and 1,670.08

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Solution

The fourth proportional to 6,287.20, 9,430.80 and 1,670.08 is: 2,505.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,287.20 : 9,430.80 = 1,670.08 : x
  2. Step 2: Convert to fraction form
    6,287.20/9,430.80 = 1,670.08/x
  3. Step 3: Cross multiply
    6,287.20x = 9,430.80 × 1,670.08
  4. Step 4: Simplify right side
    6,287.20x = 15,750,190.46
  5. Step 5: Solve for x
    x = 15,750,190.46/6,287.20
  6. Step 6: Final answer
    x = 2,505.12

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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.