Home / 5,469.20-7,547.60-3,111.36

Finding the Fourth Proportional to 5,469.20, 7,547.60 and 3,111.36

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Solution

The fourth proportional to 5,469.20, 7,547.60 and 3,111.36 is: 4,293.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,469.20 : 7,547.60 = 3,111.36 : x
  2. Step 2: Convert to fraction form
    5,469.20/7,547.60 = 3,111.36/x
  3. Step 3: Cross multiply
    5,469.20x = 7,547.60 × 3,111.36
  4. Step 4: Simplify right side
    5,469.20x = 23,483,300.74
  5. Step 5: Solve for x
    x = 23,483,300.74/5,469.20
  6. Step 6: Final answer
    x = 4,293.74

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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.