Home / 2,458.40-3,687.60-2,280.20

Finding the Fourth Proportional to 2,458.40, 3,687.60 and 2,280.20

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Solution

The fourth proportional to 2,458.40, 3,687.60 and 2,280.20 is: 3,420.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,458.40 : 3,687.60 = 2,280.20 : x
  2. Step 2: Convert to fraction form
    2,458.40/3,687.60 = 2,280.20/x
  3. Step 3: Cross multiply
    2,458.40x = 3,687.60 × 2,280.20
  4. Step 4: Simplify right side
    2,458.40x = 8,408,465.52
  5. Step 5: Solve for x
    x = 8,408,465.52/2,458.40
  6. Step 6: Final answer
    x = 3,420.30

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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.