Home / 1,719.11-2,370.11-1,316.05

Finding the Fourth Proportional to 1,719.11, 2,370.11 and 1,316.05

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Solution

The fourth proportional to 1,719.11, 2,370.11 and 1,316.05 is: 1,814.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,719.11 : 2,370.11 = 1,316.05 : x
  2. Step 2: Convert to fraction form
    1,719.11/2,370.11 = 1,316.05/x
  3. Step 3: Cross multiply
    1,719.11x = 2,370.11 × 1,316.05
  4. Step 4: Simplify right side
    1,719.11x = 3,119,170.76
  5. Step 5: Solve for x
    x = 3,119,170.76/1,719.11
  6. Step 6: Final answer
    x = 1,814.41

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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.