Home / 5,457.60-7,529.88-3,099.72

Finding the Fourth Proportional to 5,457.60, 7,529.88 and 3,099.72

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Solution

The fourth proportional to 5,457.60, 7,529.88 and 3,099.72 is: 4,276.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,457.60 : 7,529.88 = 3,099.72 : x
  2. Step 2: Convert to fraction form
    5,457.60/7,529.88 = 3,099.72/x
  3. Step 3: Cross multiply
    5,457.60x = 7,529.88 × 3,099.72
  4. Step 4: Simplify right side
    5,457.60x = 23,340,519.63
  5. Step 5: Solve for x
    x = 23,340,519.63/5,457.60
  6. Step 6: Final answer
    x = 4,276.70

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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.