Home / 1,490.08-2,056.39-826.93

Finding the Fourth Proportional to 1,490.08, 2,056.39 and 826.93

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Solution

The fourth proportional to 1,490.08, 2,056.39 and 826.93 is: 1,141.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490.08 : 2,056.39 = 826.93 : x
  2. Step 2: Convert to fraction form
    1,490.08/2,056.39 = 826.93/x
  3. Step 3: Cross multiply
    1,490.08x = 2,056.39 × 826.93
  4. Step 4: Simplify right side
    1,490.08x = 1,700,496.87
  5. Step 5: Solve for x
    x = 1,700,496.87/1,490.08
  6. Step 6: Final answer
    x = 1,141.21

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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.