Home / 1,426.65-2,140.11-933.50

Finding the Fourth Proportional to 1,426.65, 2,140.11 and 933.50

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Solution

The fourth proportional to 1,426.65, 2,140.11 and 933.50 is: 1,400.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,426.65 : 2,140.11 = 933.50 : x
  2. Step 2: Convert to fraction form
    1,426.65/2,140.11 = 933.50/x
  3. Step 3: Cross multiply
    1,426.65x = 2,140.11 × 933.50
  4. Step 4: Simplify right side
    1,426.65x = 1,997,781.98
  5. Step 5: Solve for x
    x = 1,997,781.98/1,426.65
  6. Step 6: Final answer
    x = 1,400.33

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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.