Home / 3,011.57-4,155.73-1,685.01

Finding the Fourth Proportional to 3,011.57, 4,155.73 and 1,685.01

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Solution

The fourth proportional to 3,011.57, 4,155.73 and 1,685.01 is: 2,325.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,011.57 : 4,155.73 = 1,685.01 : x
  2. Step 2: Convert to fraction form
    3,011.57/4,155.73 = 1,685.01/x
  3. Step 3: Cross multiply
    3,011.57x = 4,155.73 × 1,685.01
  4. Step 4: Simplify right side
    3,011.57x = 7,002,446.61
  5. Step 5: Solve for x
    x = 7,002,446.61/3,011.57
  6. Step 6: Final answer
    x = 2,325.18

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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.