Home / 2,043.61-2,820.16-1,112.11

Finding the Fourth Proportional to 2,043.61, 2,820.16 and 1,112.11

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Solution

The fourth proportional to 2,043.61, 2,820.16 and 1,112.11 is: 1,534.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,043.61 : 2,820.16 = 1,112.11 : x
  2. Step 2: Convert to fraction form
    2,043.61/2,820.16 = 1,112.11/x
  3. Step 3: Cross multiply
    2,043.61x = 2,820.16 × 1,112.11
  4. Step 4: Simplify right side
    2,043.61x = 3,136,328.14
  5. Step 5: Solve for x
    x = 3,136,328.14/2,043.61
  6. Step 6: Final answer
    x = 1,534.70

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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.