Home / 2,480.10-3,420.18-1,817.52

Finding the Fourth Proportional to 2,480.10, 3,420.18 and 1,817.52

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Solution

The fourth proportional to 2,480.10, 3,420.18 and 1,817.52 is: 2,506.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,480.10 : 3,420.18 = 1,817.52 : x
  2. Step 2: Convert to fraction form
    2,480.10/3,420.18 = 1,817.52/x
  3. Step 3: Cross multiply
    2,480.10x = 3,420.18 × 1,817.52
  4. Step 4: Simplify right side
    2,480.10x = 6,216,245.55
  5. Step 5: Solve for x
    x = 6,216,245.55/2,480.10
  6. Step 6: Final answer
    x = 2,506.45

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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.