Home / 3,640.10-5,460.15-2,408.90

Finding the Fourth Proportional to 3,640.10, 5,460.15 and 2,408.90

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Solution

The fourth proportional to 3,640.10, 5,460.15 and 2,408.90 is: 3,613.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,640.10 : 5,460.15 = 2,408.90 : x
  2. Step 2: Convert to fraction form
    3,640.10/5,460.15 = 2,408.90/x
  3. Step 3: Cross multiply
    3,640.10x = 5,460.15 × 2,408.90
  4. Step 4: Simplify right side
    3,640.10x = 13,152,955.34
  5. Step 5: Solve for x
    x = 13,152,955.34/3,640.10
  6. Step 6: Final answer
    x = 3,613.35

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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.