Home / 2,162.60-2,983.68-1,490.40

Finding the Fourth Proportional to 2,162.60, 2,983.68 and 1,490.40

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Solution

The fourth proportional to 2,162.60, 2,983.68 and 1,490.40 is: 2,056.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,162.60 : 2,983.68 = 1,490.40 : x
  2. Step 2: Convert to fraction form
    2,162.60/2,983.68 = 1,490.40/x
  3. Step 3: Cross multiply
    2,162.60x = 2,983.68 × 1,490.40
  4. Step 4: Simplify right side
    2,162.60x = 4,446,876.67
  5. Step 5: Solve for x
    x = 4,446,876.67/2,162.60
  6. Step 6: Final answer
    x = 2,056.26

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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.