Home / 7,901.90-11,849.34-2,904.30

Finding the Fourth Proportional to 7,901.90, 11,849.34 and 2,904.30

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Solution

The fourth proportional to 7,901.90, 11,849.34 and 2,904.30 is: 4,355.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,901.90 : 11,849.34 = 2,904.30 : x
  2. Step 2: Convert to fraction form
    7,901.90/11,849.34 = 2,904.30/x
  3. Step 3: Cross multiply
    7,901.90x = 11,849.34 × 2,904.30
  4. Step 4: Simplify right side
    7,901.90x = 34,414,038.16
  5. Step 5: Solve for x
    x = 34,414,038.16/7,901.90
  6. Step 6: Final answer
    x = 4,355.16

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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.