Home / 1,715.66-2,570.22-1,326.32

Finding the Fourth Proportional to 1,715.66, 2,570.22 and 1,326.32

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Solution

The fourth proportional to 1,715.66, 2,570.22 and 1,326.32 is: 1,986.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,715.66 : 2,570.22 = 1,326.32 : x
  2. Step 2: Convert to fraction form
    1,715.66/2,570.22 = 1,326.32/x
  3. Step 3: Cross multiply
    1,715.66x = 2,570.22 × 1,326.32
  4. Step 4: Simplify right side
    1,715.66x = 3,408,934.19
  5. Step 5: Solve for x
    x = 3,408,934.19/1,715.66
  6. Step 6: Final answer
    x = 1,986.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.