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Finding the Fourth Proportional to 2,918.02, 4,027.05 and 1,798.66

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Solution

The fourth proportional to 2,918.02, 4,027.05 and 1,798.66 is: 2,482.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918.02 : 4,027.05 = 1,798.66 : x
  2. Step 2: Convert to fraction form
    2,918.02/4,027.05 = 1,798.66/x
  3. Step 3: Cross multiply
    2,918.02x = 4,027.05 × 1,798.66
  4. Step 4: Simplify right side
    2,918.02x = 7,243,293.75
  5. Step 5: Solve for x
    x = 7,243,293.75/2,918.02
  6. Step 6: Final answer
    x = 2,482.26

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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.