Home / 6,603.12-9,111.15-3,769.20

Finding the Fourth Proportional to 6,603.12, 9,111.15 and 3,769.20

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Solution

The fourth proportional to 6,603.12, 9,111.15 and 3,769.20 is: 5,200.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,603.12 : 9,111.15 = 3,769.20 : x
  2. Step 2: Convert to fraction form
    6,603.12/9,111.15 = 3,769.20/x
  3. Step 3: Cross multiply
    6,603.12x = 9,111.15 × 3,769.20
  4. Step 4: Simplify right side
    6,603.12x = 34,341,746.58
  5. Step 5: Solve for x
    x = 34,341,746.58/6,603.12
  6. Step 6: Final answer
    x = 5,200.84

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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.