Home / 4,430.04-6,120.12-2,921.28

Finding the Fourth Proportional to 4,430.04, 6,120.12 and 2,921.28

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Solution

The fourth proportional to 4,430.04, 6,120.12 and 2,921.28 is: 4,035.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,430.04 : 6,120.12 = 2,921.28 : x
  2. Step 2: Convert to fraction form
    4,430.04/6,120.12 = 2,921.28/x
  3. Step 3: Cross multiply
    4,430.04x = 6,120.12 × 2,921.28
  4. Step 4: Simplify right side
    4,430.04x = 17,878,584.15
  5. Step 5: Solve for x
    x = 17,878,584.15/4,430.04
  6. Step 6: Final answer
    x = 4,035.76

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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.