Home / 1,690.15-2,334.00-1,598.11

Finding the Fourth Proportional to 1,690.15, 2,334.00 and 1,598.11

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Solution

The fourth proportional to 1,690.15, 2,334.00 and 1,598.11 is: 2,206.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,690.15 : 2,334.00 = 1,598.11 : x
  2. Step 2: Convert to fraction form
    1,690.15/2,334.00 = 1,598.11/x
  3. Step 3: Cross multiply
    1,690.15x = 2,334.00 × 1,598.11
  4. Step 4: Simplify right side
    1,690.15x = 3,730,002.03
  5. Step 5: Solve for x
    x = 3,730,002.03/1,690.15
  6. Step 6: Final answer
    x = 2,206.91

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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.