Home / 1,715.11-2,368.64-1,190.23

Finding the Fourth Proportional to 1,715.11, 2,368.64 and 1,190.23

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Solution

The fourth proportional to 1,715.11, 2,368.64 and 1,190.23 is: 1,643.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,715.11 : 2,368.64 = 1,190.23 : x
  2. Step 2: Convert to fraction form
    1,715.11/2,368.64 = 1,190.23/x
  3. Step 3: Cross multiply
    1,715.11x = 2,368.64 × 1,190.23
  4. Step 4: Simplify right side
    1,715.11x = 2,819,226.39
  5. Step 5: Solve for x
    x = 2,819,226.39/1,715.11
  6. Step 6: Final answer
    x = 1,643.76

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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.