Home / 2,932.40-4,047.72-1,814.20

Finding the Fourth Proportional to 2,932.40, 4,047.72 and 1,814.20

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Solution

The fourth proportional to 2,932.40, 4,047.72 and 1,814.20 is: 2,504.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,932.40 : 4,047.72 = 1,814.20 : x
  2. Step 2: Convert to fraction form
    2,932.40/4,047.72 = 1,814.20/x
  3. Step 3: Cross multiply
    2,932.40x = 4,047.72 × 1,814.20
  4. Step 4: Simplify right side
    2,932.40x = 7,343,373.62
  5. Step 5: Solve for x
    x = 7,343,373.62/2,932.40
  6. Step 6: Final answer
    x = 2,504.22

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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.