Home / 1,412.07-2,117.95-372.17

Finding the Fourth Proportional to 1,412.07, 2,117.95 and 372.17

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Solution

The fourth proportional to 1,412.07, 2,117.95 and 372.17 is: 558.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,412.07 : 2,117.95 = 372.17 : x
  2. Step 2: Convert to fraction form
    1,412.07/2,117.95 = 372.17/x
  3. Step 3: Cross multiply
    1,412.07x = 2,117.95 × 372.17
  4. Step 4: Simplify right side
    1,412.07x = 788,237.45
  5. Step 5: Solve for x
    x = 788,237.45/1,412.07
  6. Step 6: Final answer
    x = 558.21

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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.