Home / 1,698.60-2,341.26-1,342.20

Finding the Fourth Proportional to 1,698.60, 2,341.26 and 1,342.20

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Solution

The fourth proportional to 1,698.60, 2,341.26 and 1,342.20 is: 1,850.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,698.60 : 2,341.26 = 1,342.20 : x
  2. Step 2: Convert to fraction form
    1,698.60/2,341.26 = 1,342.20/x
  3. Step 3: Cross multiply
    1,698.60x = 2,341.26 × 1,342.20
  4. Step 4: Simplify right side
    1,698.60x = 3,142,439.17
  5. Step 5: Solve for x
    x = 3,142,439.17/1,698.60
  6. Step 6: Final answer
    x = 1,850.02

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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.