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Finding the Fourth Proportional to 2,357.78, 3,538.06 and 898.16

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Solution

The fourth proportional to 2,357.78, 3,538.06 and 898.16 is: 1,347.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,357.78 : 3,538.06 = 898.16 : x
  2. Step 2: Convert to fraction form
    2,357.78/3,538.06 = 898.16/x
  3. Step 3: Cross multiply
    2,357.78x = 3,538.06 × 898.16
  4. Step 4: Simplify right side
    2,357.78x = 3,177,743.97
  5. Step 5: Solve for x
    x = 3,177,743.97/2,357.78
  6. Step 6: Final answer
    x = 1,347.77

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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.