Home / 1,433.70-2,151.36-1,325.16

Finding the Fourth Proportional to 1,433.70, 2,151.36 and 1,325.16

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Solution

The fourth proportional to 1,433.70, 2,151.36 and 1,325.16 is: 1,988.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,433.70 : 2,151.36 = 1,325.16 : x
  2. Step 2: Convert to fraction form
    1,433.70/2,151.36 = 1,325.16/x
  3. Step 3: Cross multiply
    1,433.70x = 2,151.36 × 1,325.16
  4. Step 4: Simplify right side
    1,433.70x = 2,850,896.22
  5. Step 5: Solve for x
    x = 2,850,896.22/1,433.70
  6. Step 6: Final answer
    x = 1,988.49

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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.