Home / 1,690.19-2,334.07-1,598.15

Finding the Fourth Proportional to 1,690.19, 2,334.07 and 1,598.15

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Solution

The fourth proportional to 1,690.19, 2,334.07 and 1,598.15 is: 2,206.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,690.19 : 2,334.07 = 1,598.15 : x
  2. Step 2: Convert to fraction form
    1,690.19/2,334.07 = 1,598.15/x
  3. Step 3: Cross multiply
    1,690.19x = 2,334.07 × 1,598.15
  4. Step 4: Simplify right side
    1,690.19x = 3,730,191.81
  5. Step 5: Solve for x
    x = 3,730,191.81/1,690.19
  6. Step 6: Final answer
    x = 2,206.97

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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.