Home / 2,312.29-3,190.95-1,264.35

Finding the Fourth Proportional to 2,312.29, 3,190.95 and 1,264.35

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Solution

The fourth proportional to 2,312.29, 3,190.95 and 1,264.35 is: 1,744.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,312.29 : 3,190.95 = 1,264.35 : x
  2. Step 2: Convert to fraction form
    2,312.29/3,190.95 = 1,264.35/x
  3. Step 3: Cross multiply
    2,312.29x = 3,190.95 × 1,264.35
  4. Step 4: Simplify right side
    2,312.29x = 4,034,477.63
  5. Step 5: Solve for x
    x = 4,034,477.63/2,312.29
  6. Step 6: Final answer
    x = 1,744.80

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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.