Home / 1,503.12-2,073.26-1,379.19

Finding the Fourth Proportional to 1,503.12, 2,073.26 and 1,379.19

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Solution

The fourth proportional to 1,503.12, 2,073.26 and 1,379.19 is: 1,902.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,503.12 : 2,073.26 = 1,379.19 : x
  2. Step 2: Convert to fraction form
    1,503.12/2,073.26 = 1,379.19/x
  3. Step 3: Cross multiply
    1,503.12x = 2,073.26 × 1,379.19
  4. Step 4: Simplify right side
    1,503.12x = 2,859,419.46
  5. Step 5: Solve for x
    x = 2,859,419.46/1,503.12
  6. Step 6: Final answer
    x = 1,902.32

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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.