Home / 3,240.18-4,860.12-900.17

Finding the Fourth Proportional to 3,240.18, 4,860.12 and 900.17

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Solution

The fourth proportional to 3,240.18, 4,860.12 and 900.17 is: 1,350.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,240.18 : 4,860.12 = 900.17 : x
  2. Step 2: Convert to fraction form
    3,240.18/4,860.12 = 900.17/x
  3. Step 3: Cross multiply
    3,240.18x = 4,860.12 × 900.17
  4. Step 4: Simplify right side
    3,240.18x = 4,374,924.77
  5. Step 5: Solve for x
    x = 4,374,924.77/3,240.18
  6. Step 6: Final answer
    x = 1,350.21

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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.