Home / 1,908.48-2,631.49-1,402.03

Finding the Fourth Proportional to 1,908.48, 2,631.49 and 1,402.03

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Solution

The fourth proportional to 1,908.48, 2,631.49 and 1,402.03 is: 1,933.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,908.48 : 2,631.49 = 1,402.03 : x
  2. Step 2: Convert to fraction form
    1,908.48/2,631.49 = 1,402.03/x
  3. Step 3: Cross multiply
    1,908.48x = 2,631.49 × 1,402.03
  4. Step 4: Simplify right side
    1,908.48x = 3,689,427.92
  5. Step 5: Solve for x
    x = 3,689,427.92/1,908.48
  6. Step 6: Final answer
    x = 1,933.18

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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.