Home / 1,529.85-2,111.49-1,057.62

Finding the Fourth Proportional to 1,529.85, 2,111.49 and 1,057.62

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Solution

The fourth proportional to 1,529.85, 2,111.49 and 1,057.62 is: 1,459.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,529.85 : 2,111.49 = 1,057.62 : x
  2. Step 2: Convert to fraction form
    1,529.85/2,111.49 = 1,057.62/x
  3. Step 3: Cross multiply
    1,529.85x = 2,111.49 × 1,057.62
  4. Step 4: Simplify right side
    1,529.85x = 2,233,154.05
  5. Step 5: Solve for x
    x = 2,233,154.05/1,529.85
  6. Step 6: Final answer
    x = 1,459.72

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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.