Home / 1,535.42-2,313.36-1,389.33

Finding the Fourth Proportional to 1,535.42, 2,313.36 and 1,389.33

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Solution

The fourth proportional to 1,535.42, 2,313.36 and 1,389.33 is: 2,093.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,535.42 : 2,313.36 = 1,389.33 : x
  2. Step 2: Convert to fraction form
    1,535.42/2,313.36 = 1,389.33/x
  3. Step 3: Cross multiply
    1,535.42x = 2,313.36 × 1,389.33
  4. Step 4: Simplify right side
    1,535.42x = 3,214,020.45
  5. Step 5: Solve for x
    x = 3,214,020.45/1,535.42
  6. Step 6: Final answer
    x = 2,093.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.