Home / 3,071.52-4,240.40-2,164.46

Finding the Fourth Proportional to 3,071.52, 4,240.40 and 2,164.46

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Solution

The fourth proportional to 3,071.52, 4,240.40 and 2,164.46 is: 2,988.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,071.52 : 4,240.40 = 2,164.46 : x
  2. Step 2: Convert to fraction form
    3,071.52/4,240.40 = 2,164.46/x
  3. Step 3: Cross multiply
    3,071.52x = 4,240.40 × 2,164.46
  4. Step 4: Simplify right side
    3,071.52x = 9,178,144.16
  5. Step 5: Solve for x
    x = 9,178,144.16/3,071.52
  6. Step 6: Final answer
    x = 2,988.14

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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.