Home / 5,259.79-7,259.45-3,135.46

Finding the Fourth Proportional to 5,259.79, 7,259.45 and 3,135.46

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Solution

The fourth proportional to 5,259.79, 7,259.45 and 3,135.46 is: 4,327.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,259.79 : 7,259.45 = 3,135.46 : x
  2. Step 2: Convert to fraction form
    5,259.79/7,259.45 = 3,135.46/x
  3. Step 3: Cross multiply
    5,259.79x = 7,259.45 × 3,135.46
  4. Step 4: Simplify right side
    5,259.79x = 22,761,707.49
  5. Step 5: Solve for x
    x = 22,761,707.49/5,259.79
  6. Step 6: Final answer
    x = 4,327.49

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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.