Home / 2,455.52-3,389.10-1,408.28

Finding the Fourth Proportional to 2,455.52, 3,389.10 and 1,408.28

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Solution

The fourth proportional to 2,455.52, 3,389.10 and 1,408.28 is: 1,943.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,455.52 : 3,389.10 = 1,408.28 : x
  2. Step 2: Convert to fraction form
    2,455.52/3,389.10 = 1,408.28/x
  3. Step 3: Cross multiply
    2,455.52x = 3,389.10 × 1,408.28
  4. Step 4: Simplify right side
    2,455.52x = 4,772,801.75
  5. Step 5: Solve for x
    x = 4,772,801.75/2,455.52
  6. Step 6: Final answer
    x = 1,943.70

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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.