Home / 1,529.38-2,110.06-1,057.30

Finding the Fourth Proportional to 1,529.38, 2,110.06 and 1,057.30

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Solution

The fourth proportional to 1,529.38, 2,110.06 and 1,057.30 is: 1,458.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,529.38 : 2,110.06 = 1,057.30 : x
  2. Step 2: Convert to fraction form
    1,529.38/2,110.06 = 1,057.30/x
  3. Step 3: Cross multiply
    1,529.38x = 2,110.06 × 1,057.30
  4. Step 4: Simplify right side
    1,529.38x = 2,230,970.40
  5. Step 5: Solve for x
    x = 2,230,970.40/1,529.38
  6. Step 6: Final answer
    x = 1,458.74

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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.