Home / 2,014.28-2,781.78-1,603.40

Finding the Fourth Proportional to 2,014.28, 2,781.78 and 1,603.40

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Solution

The fourth proportional to 2,014.28, 2,781.78 and 1,603.40 is: 2,214.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,014.28 : 2,781.78 = 1,603.40 : x
  2. Step 2: Convert to fraction form
    2,014.28/2,781.78 = 1,603.40/x
  3. Step 3: Cross multiply
    2,014.28x = 2,781.78 × 1,603.40
  4. Step 4: Simplify right side
    2,014.28x = 4,460,306.05
  5. Step 5: Solve for x
    x = 4,460,306.05/2,014.28
  6. Step 6: Final answer
    x = 2,214.34

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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.