Home / 1,588.96-2,191.56-1,392.13

Finding the Fourth Proportional to 1,588.96, 2,191.56 and 1,392.13

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Solution

The fourth proportional to 1,588.96, 2,191.56 and 1,392.13 is: 1,920.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,588.96 : 2,191.56 = 1,392.13 : x
  2. Step 2: Convert to fraction form
    1,588.96/2,191.56 = 1,392.13/x
  3. Step 3: Cross multiply
    1,588.96x = 2,191.56 × 1,392.13
  4. Step 4: Simplify right side
    1,588.96x = 3,050,936.42
  5. Step 5: Solve for x
    x = 3,050,936.42/1,588.96
  6. Step 6: Final answer
    x = 1,920.08

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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.