Home / 3,117.04-4,299.31-1,857.12

Finding the Fourth Proportional to 3,117.04, 4,299.31 and 1,857.12

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Solution

The fourth proportional to 3,117.04, 4,299.31 and 1,857.12 is: 2,561.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,117.04 : 4,299.31 = 1,857.12 : x
  2. Step 2: Convert to fraction form
    3,117.04/4,299.31 = 1,857.12/x
  3. Step 3: Cross multiply
    3,117.04x = 4,299.31 × 1,857.12
  4. Step 4: Simplify right side
    3,117.04x = 7,984,332.88
  5. Step 5: Solve for x
    x = 7,984,332.88/3,117.04
  6. Step 6: Final answer
    x = 2,561.51

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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.