Home / 2,880.13-3,973.24-1,685.15

Finding the Fourth Proportional to 2,880.13, 3,973.24 and 1,685.15

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Solution

The fourth proportional to 2,880.13, 3,973.24 and 1,685.15 is: 2,324.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,880.13 : 3,973.24 = 1,685.15 : x
  2. Step 2: Convert to fraction form
    2,880.13/3,973.24 = 1,685.15/x
  3. Step 3: Cross multiply
    2,880.13x = 3,973.24 × 1,685.15
  4. Step 4: Simplify right side
    2,880.13x = 6,695,496.96
  5. Step 5: Solve for x
    x = 6,695,496.96/2,880.13
  6. Step 6: Final answer
    x = 2,324.72

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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.