Home / 2,068.16-2,857.20-1,543.28

Finding the Fourth Proportional to 2,068.16, 2,857.20 and 1,543.28

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Solution

The fourth proportional to 2,068.16, 2,857.20 and 1,543.28 is: 2,132.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,068.16 : 2,857.20 = 1,543.28 : x
  2. Step 2: Convert to fraction form
    2,068.16/2,857.20 = 1,543.28/x
  3. Step 3: Cross multiply
    2,068.16x = 2,857.20 × 1,543.28
  4. Step 4: Simplify right side
    2,068.16x = 4,409,459.62
  5. Step 5: Solve for x
    x = 4,409,459.62/2,068.16
  6. Step 6: Final answer
    x = 2,132.07

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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.