Home / 7,842.08-10,821.47-4,305.49

Finding the Fourth Proportional to 7,842.08, 10,821.47 and 4,305.49

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Solution

The fourth proportional to 7,842.08, 10,821.47 and 4,305.49 is: 5,941.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,842.08 : 10,821.47 = 4,305.49 : x
  2. Step 2: Convert to fraction form
    7,842.08/10,821.47 = 4,305.49/x
  3. Step 3: Cross multiply
    7,842.08x = 10,821.47 × 4,305.49
  4. Step 4: Simplify right side
    7,842.08x = 46,591,682.29
  5. Step 5: Solve for x
    x = 46,591,682.29/7,842.08
  6. Step 6: Final answer
    x = 5,941.24

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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.