Home / 2,402.92-3,315.78-1,354.80

Finding the Fourth Proportional to 2,402.92, 3,315.78 and 1,354.80

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Solution

The fourth proportional to 2,402.92, 3,315.78 and 1,354.80 is: 1,869.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,402.92 : 3,315.78 = 1,354.80 : x
  2. Step 2: Convert to fraction form
    2,402.92/3,315.78 = 1,354.80/x
  3. Step 3: Cross multiply
    2,402.92x = 3,315.78 × 1,354.80
  4. Step 4: Simplify right side
    2,402.92x = 4,492,218.74
  5. Step 5: Solve for x
    x = 4,492,218.74/2,402.92
  6. Step 6: Final answer
    x = 1,869.48

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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.