Home / 1,674.51-2,311.31-1,011.25

Finding the Fourth Proportional to 1,674.51, 2,311.31 and 1,011.25

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Solution

The fourth proportional to 1,674.51, 2,311.31 and 1,011.25 is: 1,395.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,674.51 : 2,311.31 = 1,011.25 : x
  2. Step 2: Convert to fraction form
    1,674.51/2,311.31 = 1,011.25/x
  3. Step 3: Cross multiply
    1,674.51x = 2,311.31 × 1,011.25
  4. Step 4: Simplify right side
    1,674.51x = 2,337,312.24
  5. Step 5: Solve for x
    x = 2,337,312.24/1,674.51
  6. Step 6: Final answer
    x = 1,395.82

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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.