Home / 5,220.36-7,204.32-3,124.08

Finding the Fourth Proportional to 5,220.36, 7,204.32 and 3,124.08

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Solution

The fourth proportional to 5,220.36, 7,204.32 and 3,124.08 is: 4,311.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,220.36 : 7,204.32 = 3,124.08 : x
  2. Step 2: Convert to fraction form
    5,220.36/7,204.32 = 3,124.08/x
  3. Step 3: Cross multiply
    5,220.36x = 7,204.32 × 3,124.08
  4. Step 4: Simplify right side
    5,220.36x = 22,506,872.03
  5. Step 5: Solve for x
    x = 22,506,872.03/5,220.36
  6. Step 6: Final answer
    x = 4,311.36

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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.