Home / 1,659.12-2,290.08-1,038.48

Finding the Fourth Proportional to 1,659.12, 2,290.08 and 1,038.48

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Solution

The fourth proportional to 1,659.12, 2,290.08 and 1,038.48 is: 1,433.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,659.12 : 2,290.08 = 1,038.48 : x
  2. Step 2: Convert to fraction form
    1,659.12/2,290.08 = 1,038.48/x
  3. Step 3: Cross multiply
    1,659.12x = 2,290.08 × 1,038.48
  4. Step 4: Simplify right side
    1,659.12x = 2,378,202.28
  5. Step 5: Solve for x
    x = 2,378,202.28/1,659.12
  6. Step 6: Final answer
    x = 1,433.41

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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.