Home / 2,280.40-3,146.95-1,232.46

Finding the Fourth Proportional to 2,280.40, 3,146.95 and 1,232.46

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Solution

The fourth proportional to 2,280.40, 3,146.95 and 1,232.46 is: 1,700.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,280.40 : 3,146.95 = 1,232.46 : x
  2. Step 2: Convert to fraction form
    2,280.40/3,146.95 = 1,232.46/x
  3. Step 3: Cross multiply
    2,280.40x = 3,146.95 × 1,232.46
  4. Step 4: Simplify right side
    2,280.40x = 3,878,491.54
  5. Step 5: Solve for x
    x = 3,878,491.54/2,280.40
  6. Step 6: Final answer
    x = 1,700.80

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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.