Home / 1,433.48-2,146.98-1,145.12

Finding the Fourth Proportional to 1,433.48, 2,146.98 and 1,145.12

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Solution

The fourth proportional to 1,433.48, 2,146.98 and 1,145.12 is: 1,715.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,433.48 : 2,146.98 = 1,145.12 : x
  2. Step 2: Convert to fraction form
    1,433.48/2,146.98 = 1,145.12/x
  3. Step 3: Cross multiply
    1,433.48x = 2,146.98 × 1,145.12
  4. Step 4: Simplify right side
    1,433.48x = 2,458,549.74
  5. Step 5: Solve for x
    x = 2,458,549.74/1,433.48
  6. Step 6: Final answer
    x = 1,715.09

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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.