Home / 2,276.53-3,142.13-1,490.13

Finding the Fourth Proportional to 2,276.53, 3,142.13 and 1,490.13

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Solution

The fourth proportional to 2,276.53, 3,142.13 and 1,490.13 is: 2,056.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,276.53 : 3,142.13 = 1,490.13 : x
  2. Step 2: Convert to fraction form
    2,276.53/3,142.13 = 1,490.13/x
  3. Step 3: Cross multiply
    2,276.53x = 3,142.13 × 1,490.13
  4. Step 4: Simplify right side
    2,276.53x = 4,682,182.18
  5. Step 5: Solve for x
    x = 4,682,182.18/2,276.53
  6. Step 6: Final answer
    x = 2,056.72

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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.