Home / 1,674.98-2,312.84-1,086.51

Finding the Fourth Proportional to 1,674.98, 2,312.84 and 1,086.51

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Solution

The fourth proportional to 1,674.98, 2,312.84 and 1,086.51 is: 1,500.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,674.98 : 2,312.84 = 1,086.51 : x
  2. Step 2: Convert to fraction form
    1,674.98/2,312.84 = 1,086.51/x
  3. Step 3: Cross multiply
    1,674.98x = 2,312.84 × 1,086.51
  4. Step 4: Simplify right side
    1,674.98x = 2,512,918.36
  5. Step 5: Solve for x
    x = 2,512,918.36/1,674.98
  6. Step 6: Final answer
    x = 1,500.27

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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.