Home / 3,142.19-4,337.01-1,816.66

Finding the Fourth Proportional to 3,142.19, 4,337.01 and 1,816.66

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Solution

The fourth proportional to 3,142.19, 4,337.01 and 1,816.66 is: 2,507.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,142.19 : 4,337.01 = 1,816.66 : x
  2. Step 2: Convert to fraction form
    3,142.19/4,337.01 = 1,816.66/x
  3. Step 3: Cross multiply
    3,142.19x = 4,337.01 × 1,816.66
  4. Step 4: Simplify right side
    3,142.19x = 7,878,878.01
  5. Step 5: Solve for x
    x = 7,878,878.01/3,142.19
  6. Step 6: Final answer
    x = 2,507.45

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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.