Home / 2,849.36-3,931.56-1,607.12

Finding the Fourth Proportional to 2,849.36, 3,931.56 and 1,607.12

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Solution

The fourth proportional to 2,849.36, 3,931.56 and 1,607.12 is: 2,217.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,849.36 : 3,931.56 = 1,607.12 : x
  2. Step 2: Convert to fraction form
    2,849.36/3,931.56 = 1,607.12/x
  3. Step 3: Cross multiply
    2,849.36x = 3,931.56 × 1,607.12
  4. Step 4: Simplify right side
    2,849.36x = 6,318,488.71
  5. Step 5: Solve for x
    x = 6,318,488.71/2,849.36
  6. Step 6: Final answer
    x = 2,217.51

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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.