Home / 1,707.35-2,354.57-1,139.18

Finding the Fourth Proportional to 1,707.35, 2,354.57 and 1,139.18

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Solution

The fourth proportional to 1,707.35, 2,354.57 and 1,139.18 is: 1,571.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,707.35 : 2,354.57 = 1,139.18 : x
  2. Step 2: Convert to fraction form
    1,707.35/2,354.57 = 1,139.18/x
  3. Step 3: Cross multiply
    1,707.35x = 2,354.57 × 1,139.18
  4. Step 4: Simplify right side
    1,707.35x = 2,682,279.10
  5. Step 5: Solve for x
    x = 2,682,279.10/1,707.35
  6. Step 6: Final answer
    x = 1,571.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.