Home / 3,011.80-4,156.16-1,685.26

Finding the Fourth Proportional to 3,011.80, 4,156.16 and 1,685.26

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Solution

The fourth proportional to 3,011.80, 4,156.16 and 1,685.26 is: 2,325.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,011.80 : 4,156.16 = 1,685.26 : x
  2. Step 2: Convert to fraction form
    3,011.80/4,156.16 = 1,685.26/x
  3. Step 3: Cross multiply
    3,011.80x = 4,156.16 × 1,685.26
  4. Step 4: Simplify right side
    3,011.80x = 7,004,210.20
  5. Step 5: Solve for x
    x = 7,004,210.20/3,011.80
  6. Step 6: Final answer
    x = 2,325.59

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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.