Home / 5,398.40-8,095.20-2,477.60

Finding the Fourth Proportional to 5,398.40, 8,095.20 and 2,477.60

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Solution

The fourth proportional to 5,398.40, 8,095.20 and 2,477.60 is: 3,715.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,398.40 : 8,095.20 = 2,477.60 : x
  2. Step 2: Convert to fraction form
    5,398.40/8,095.20 = 2,477.60/x
  3. Step 3: Cross multiply
    5,398.40x = 8,095.20 × 2,477.60
  4. Step 4: Simplify right side
    5,398.40x = 20,056,667.52
  5. Step 5: Solve for x
    x = 20,056,667.52/5,398.40
  6. Step 6: Final answer
    x = 3,715.30

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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.