Home / 2,312.17-3,190.84-1,264.23

Finding the Fourth Proportional to 2,312.17, 3,190.84 and 1,264.23

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Solution

The fourth proportional to 2,312.17, 3,190.84 and 1,264.23 is: 1,744.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,312.17 : 3,190.84 = 1,264.23 : x
  2. Step 2: Convert to fraction form
    2,312.17/3,190.84 = 1,264.23/x
  3. Step 3: Cross multiply
    2,312.17x = 3,190.84 × 1,264.23
  4. Step 4: Simplify right side
    2,312.17x = 4,033,952.49
  5. Step 5: Solve for x
    x = 4,033,952.49/2,312.17
  6. Step 6: Final answer
    x = 1,744.66

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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.