Home / 2,312.06-3,190.90-1,368.14

Finding the Fourth Proportional to 2,312.06, 3,190.90 and 1,368.14

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Solution

The fourth proportional to 2,312.06, 3,190.90 and 1,368.14 is: 1,888.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,312.06 : 3,190.90 = 1,368.14 : x
  2. Step 2: Convert to fraction form
    2,312.06/3,190.90 = 1,368.14/x
  3. Step 3: Cross multiply
    2,312.06x = 3,190.90 × 1,368.14
  4. Step 4: Simplify right side
    2,312.06x = 4,365,597.93
  5. Step 5: Solve for x
    x = 4,365,597.93/2,312.06
  6. Step 6: Final answer
    x = 1,888.19

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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.