Home / 3,463.16-4,779.36-1,971.20

Finding the Fourth Proportional to 3,463.16, 4,779.36 and 1,971.20

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Solution

The fourth proportional to 3,463.16, 4,779.36 and 1,971.20 is: 2,720.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,463.16 : 4,779.36 = 1,971.20 : x
  2. Step 2: Convert to fraction form
    3,463.16/4,779.36 = 1,971.20/x
  3. Step 3: Cross multiply
    3,463.16x = 4,779.36 × 1,971.20
  4. Step 4: Simplify right side
    3,463.16x = 9,421,086.38
  5. Step 5: Solve for x
    x = 9,421,086.38/3,463.16
  6. Step 6: Final answer
    x = 2,720.38

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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.