Home / 1,674.80-2,312.24-1,116.08

Finding the Fourth Proportional to 1,674.80, 2,312.24 and 1,116.08

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Solution

The fourth proportional to 1,674.80, 2,312.24 and 1,116.08 is: 1,540.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,674.80 : 2,312.24 = 1,116.08 : x
  2. Step 2: Convert to fraction form
    1,674.80/2,312.24 = 1,116.08/x
  3. Step 3: Cross multiply
    1,674.80x = 2,312.24 × 1,116.08
  4. Step 4: Simplify right side
    1,674.80x = 2,580,644.82
  5. Step 5: Solve for x
    x = 2,580,644.82/1,674.80
  6. Step 6: Final answer
    x = 1,540.87

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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.