Home / 3,070.64-4,236.95-1,811.60

Finding the Fourth Proportional to 3,070.64, 4,236.95 and 1,811.60

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Solution

The fourth proportional to 3,070.64, 4,236.95 and 1,811.60 is: 2,499.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,070.64 : 4,236.95 = 1,811.60 : x
  2. Step 2: Convert to fraction form
    3,070.64/4,236.95 = 1,811.60/x
  3. Step 3: Cross multiply
    3,070.64x = 4,236.95 × 1,811.60
  4. Step 4: Simplify right side
    3,070.64x = 7,675,628.38
  5. Step 5: Solve for x
    x = 7,675,628.38/3,070.64
  6. Step 6: Final answer
    x = 2,499.69

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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.