Home / 3,011.29-4,155.81-1,685.23

Finding the Fourth Proportional to 3,011.29, 4,155.81 and 1,685.23

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Solution

The fourth proportional to 3,011.29, 4,155.81 and 1,685.23 is: 2,325.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,011.29 : 4,155.81 = 1,685.23 : x
  2. Step 2: Convert to fraction form
    3,011.29/4,155.81 = 1,685.23/x
  3. Step 3: Cross multiply
    3,011.29x = 4,155.81 × 1,685.23
  4. Step 4: Simplify right side
    3,011.29x = 7,003,495.69
  5. Step 5: Solve for x
    x = 7,003,495.69/3,011.29
  6. Step 6: Final answer
    x = 2,325.75

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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.