Home / 1,709.48-2,356.38-1,211.04

Finding the Fourth Proportional to 1,709.48, 2,356.38 and 1,211.04

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Solution

The fourth proportional to 1,709.48, 2,356.38 and 1,211.04 is: 1,669.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,709.48 : 2,356.38 = 1,211.04 : x
  2. Step 2: Convert to fraction form
    1,709.48/2,356.38 = 1,211.04/x
  3. Step 3: Cross multiply
    1,709.48x = 2,356.38 × 1,211.04
  4. Step 4: Simplify right side
    1,709.48x = 2,853,670.44
  5. Step 5: Solve for x
    x = 2,853,670.44/1,709.48
  6. Step 6: Final answer
    x = 1,669.32

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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.