Home / 5,380.12-8,070.18-2,457.64

Finding the Fourth Proportional to 5,380.12, 8,070.18 and 2,457.64

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Solution

The fourth proportional to 5,380.12, 8,070.18 and 2,457.64 is: 3,686.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,380.12 : 8,070.18 = 2,457.64 : x
  2. Step 2: Convert to fraction form
    5,380.12/8,070.18 = 2,457.64/x
  3. Step 3: Cross multiply
    5,380.12x = 8,070.18 × 2,457.64
  4. Step 4: Simplify right side
    5,380.12x = 19,833,597.18
  5. Step 5: Solve for x
    x = 19,833,597.18/5,380.12
  6. Step 6: Final answer
    x = 3,686.46

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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.