Home / 2,880.24-3,973.64-1,817.70

Finding the Fourth Proportional to 2,880.24, 3,973.64 and 1,817.70

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Solution

The fourth proportional to 2,880.24, 3,973.64 and 1,817.70 is: 2,507.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,880.24 : 3,973.64 = 1,817.70 : x
  2. Step 2: Convert to fraction form
    2,880.24/3,973.64 = 1,817.70/x
  3. Step 3: Cross multiply
    2,880.24x = 3,973.64 × 1,817.70
  4. Step 4: Simplify right side
    2,880.24x = 7,222,885.43
  5. Step 5: Solve for x
    x = 7,222,885.43/2,880.24
  6. Step 6: Final answer
    x = 2,507.74

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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.