Home / 1,571.08-2,357.01-1,109.76

Finding the Fourth Proportional to 1,571.08, 2,357.01 and 1,109.76

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Solution

The fourth proportional to 1,571.08, 2,357.01 and 1,109.76 is: 1,664.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,571.08 : 2,357.01 = 1,109.76 : x
  2. Step 2: Convert to fraction form
    1,571.08/2,357.01 = 1,109.76/x
  3. Step 3: Cross multiply
    1,571.08x = 2,357.01 × 1,109.76
  4. Step 4: Simplify right side
    1,571.08x = 2,615,715.42
  5. Step 5: Solve for x
    x = 2,615,715.42/1,571.08
  6. Step 6: Final answer
    x = 1,664.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.