Home / 1,358.99-1,873.85-1,109.52

Finding the Fourth Proportional to 1,358.99, 1,873.85 and 1,109.52

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Solution

The fourth proportional to 1,358.99, 1,873.85 and 1,109.52 is: 1,529.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,358.99 : 1,873.85 = 1,109.52 : x
  2. Step 2: Convert to fraction form
    1,358.99/1,873.85 = 1,109.52/x
  3. Step 3: Cross multiply
    1,358.99x = 1,873.85 × 1,109.52
  4. Step 4: Simplify right side
    1,358.99x = 2,079,068.50
  5. Step 5: Solve for x
    x = 2,079,068.50/1,358.99
  6. Step 6: Final answer
    x = 1,529.87

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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.