Home / 5,426.09-7,489.70-3,534.35

Finding the Fourth Proportional to 5,426.09, 7,489.70 and 3,534.35

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Solution

The fourth proportional to 5,426.09, 7,489.70 and 3,534.35 is: 4,878.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,426.09 : 7,489.70 = 3,534.35 : x
  2. Step 2: Convert to fraction form
    5,426.09/7,489.70 = 3,534.35/x
  3. Step 3: Cross multiply
    5,426.09x = 7,489.70 × 3,534.35
  4. Step 4: Simplify right side
    5,426.09x = 26,471,203.52
  5. Step 5: Solve for x
    x = 26,471,203.52/5,426.09
  6. Step 6: Final answer
    x = 4,878.50

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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.