Home / 2,640.28-3,962.68-1,471.46

Finding the Fourth Proportional to 2,640.28, 3,962.68 and 1,471.46

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Solution

The fourth proportional to 2,640.28, 3,962.68 and 1,471.46 is: 2,208.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,640.28 : 3,962.68 = 1,471.46 : x
  2. Step 2: Convert to fraction form
    2,640.28/3,962.68 = 1,471.46/x
  3. Step 3: Cross multiply
    2,640.28x = 3,962.68 × 1,471.46
  4. Step 4: Simplify right side
    2,640.28x = 5,830,925.11
  5. Step 5: Solve for x
    x = 5,830,925.11/2,640.28
  6. Step 6: Final answer
    x = 2,208.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.