Home / 4,707.44-7,062.08-1,420.40

Finding the Fourth Proportional to 4,707.44, 7,062.08 and 1,420.40

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Solution

The fourth proportional to 4,707.44, 7,062.08 and 1,420.40 is: 2,130.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,707.44 : 7,062.08 = 1,420.40 : x
  2. Step 2: Convert to fraction form
    4,707.44/7,062.08 = 1,420.40/x
  3. Step 3: Cross multiply
    4,707.44x = 7,062.08 × 1,420.40
  4. Step 4: Simplify right side
    4,707.44x = 10,030,978.43
  5. Step 5: Solve for x
    x = 10,030,978.43/4,707.44
  6. Step 6: Final answer
    x = 2,130.88

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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.