Home / 1,690.05-2,522.28-1,550.60

Finding the Fourth Proportional to 1,690.05, 2,522.28 and 1,550.60

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Solution

The fourth proportional to 1,690.05, 2,522.28 and 1,550.60 is: 2,314.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,690.05 : 2,522.28 = 1,550.60 : x
  2. Step 2: Convert to fraction form
    1,690.05/2,522.28 = 1,550.60/x
  3. Step 3: Cross multiply
    1,690.05x = 2,522.28 × 1,550.60
  4. Step 4: Simplify right side
    1,690.05x = 3,911,047.37
  5. Step 5: Solve for x
    x = 3,911,047.37/1,690.05
  6. Step 6: Final answer
    x = 2,314.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.