Home / 2,985.06-4,116.62-1,865.64

Finding the Fourth Proportional to 2,985.06, 4,116.62 and 1,865.64

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Solution

The fourth proportional to 2,985.06, 4,116.62 and 1,865.64 is: 2,572.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,985.06 : 4,116.62 = 1,865.64 : x
  2. Step 2: Convert to fraction form
    2,985.06/4,116.62 = 1,865.64/x
  3. Step 3: Cross multiply
    2,985.06x = 4,116.62 × 1,865.64
  4. Step 4: Simplify right side
    2,985.06x = 7,680,130.94
  5. Step 5: Solve for x
    x = 7,680,130.94/2,985.06
  6. Step 6: Final answer
    x = 2,572.86

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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.