Home / 2,880.30-3,973.47-1,871.94

Finding the Fourth Proportional to 2,880.30, 3,973.47 and 1,871.94

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Solution

The fourth proportional to 2,880.30, 3,973.47 and 1,871.94 is: 2,582.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,880.30 : 3,973.47 = 1,871.94 : x
  2. Step 2: Convert to fraction form
    2,880.30/3,973.47 = 1,871.94/x
  3. Step 3: Cross multiply
    2,880.30x = 3,973.47 × 1,871.94
  4. Step 4: Simplify right side
    2,880.30x = 7,438,097.43
  5. Step 5: Solve for x
    x = 7,438,097.43/2,880.30
  6. Step 6: Final answer
    x = 2,582.40

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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.