Home / 2,817.17-3,887.63-1,558.20

Finding the Fourth Proportional to 2,817.17, 3,887.63 and 1,558.20

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Solution

The fourth proportional to 2,817.17, 3,887.63 and 1,558.20 is: 2,150.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,817.17 : 3,887.63 = 1,558.20 : x
  2. Step 2: Convert to fraction form
    2,817.17/3,887.63 = 1,558.20/x
  3. Step 3: Cross multiply
    2,817.17x = 3,887.63 × 1,558.20
  4. Step 4: Simplify right side
    2,817.17x = 6,057,705.07
  5. Step 5: Solve for x
    x = 6,057,705.07/2,817.17
  6. Step 6: Final answer
    x = 2,150.28

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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.