Home / 6,419.04-9,625.32-3,127.20

Finding the Fourth Proportional to 6,419.04, 9,625.32 and 3,127.20

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Solution

The fourth proportional to 6,419.04, 9,625.32 and 3,127.20 is: 4,689.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,419.04 : 9,625.32 = 3,127.20 : x
  2. Step 2: Convert to fraction form
    6,419.04/9,625.32 = 3,127.20/x
  3. Step 3: Cross multiply
    6,419.04x = 9,625.32 × 3,127.20
  4. Step 4: Simplify right side
    6,419.04x = 30,100,300.70
  5. Step 5: Solve for x
    x = 30,100,300.70/6,419.04
  6. Step 6: Final answer
    x = 4,689.22

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1.5x scale

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.